SCIENTIFIC ABSTRACT ALIYEV, G. K. - ALIYEV, G. M.

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7 -'Vf -(T.' vjolllz~t~znliyy wvatel' nftu"i- GlISMANY S.M., 6.K. pr(;4%; TEEFTER ('n the 7C)tl-. win--vc-rsary of the Psh,-t-,;-ridze N:). 1, G-Linice-I Blspital". Azerb. med. zhur. 41 nc.2~84-85 Ja 164. (h' i 14 2 7: 12 2. Glavny.,r vi-och k1j.'-n.4charzkoy bcl-trjt,3y N,,,. 3 'i~,hnparldze, Baku (for Kadynwlll ,a ALIYEV. G.K.; GADZHIYEVl A.A.; TAGIYEVI G.A. ....... -1 An&IyBls of Bone aspects of echinococconia. Azerb. ined. ilhur, 41 no,9tl7-25 S 164. (I(MA 'o.Btll) ALIYEV, G,K..; GADZI11YEV, LOGINOV, A.A.; KNABENGOF, V.G.; GA~GHIYEV, I.M. Motor chrona):Jn in premedication for local anesthesia wil;h neuroplegIc mixtures. Azerb. mod. zhur. 42 no.4~15-20 lip 165. (MIRA 1.8.-9) 1. 1z kafedry khirurgii (zav.- zasluzhennyy deyatell nauld prof., G.K. Aliyev) Azerbaydzhanskogo Instituta usovershenstvovitniya vrachey imen! Aliyeva (rektor - kand. tied. nauk B.P1. Aga,rev). ALIYEV, Gjt. iilfect of chlorine on the a,- selenium. I av. AN i.-,ert,.SSR no.''): 3-9 S 157. (MMA 10: 1.? (ChI,:,rjnt3) tSeleniu-,! Peat --Gondue t t on) c AUTHORS: Aliyev, 0. M. and Abdullayev, 0. B. TITLE: A Note on the Influence of a Chlorine Admixture on th(i TherrAl Conductivity of Selenium (0 vliyanii primesi khLDra na. teplopro- vodnost' selena), PERIODICAL*. Doklady AN SSSR, 1957, Vol. 116, h'r 4, i)p. 598-6oo (U:;SR)a ABSTRACT! The thermal conductivity of semicond'actors and its dependence on the chemical. composition and on crystal structure was investigated by A. F. Ioffe and his students (reference 1, 2, 3, L). In tho prodw.-tion od selenium rectifiers admixtures of halof,,anes, in parm ticul-tr chlorineY are used for the purpose of ii:icreaeing the cur= rent passinG through the semiconductor. The ex.plarimenta showipd the following results. During the electric formation and the further continued operation of these rej.,tifiers a redistribi7tion of the admixtures takes place, which modifies the electric thermal characteristics of the selenium layer and of the syst,em as a whole. In the backward direction the voltage applied to the rectifier is local-ized almost entirely-at the anode at the electron-hole transio tion because of the formation of a great resistance, This causes a temperature gradient along the semiconductor, The authors deters Card 113 mined the coefficient of thermal conductivity by a titationary mew jmw~_ A Note on the Influence of a Chlorine Admixture on the Thermal 2o-11.20/51 Conductivity of Seleniiim. tbod by means of a cylindrical set up, containing a !jenBitive semi- conductor ring for the removal of lateral heat lossen. A diagram Illustrates the curves of the modification of heat conductivity of selenium and its dependence on the eblorine content :from 2o to 220C. The different, curvemare related to vitreous arid crystallised seK lenium. The course taken by these curves is independend of the de- gree of crystallization, but depends only on the adiiiixtures. The heat conductivity decreases as far as 0,031/ont an Lnerease of the chlorine content,, then it increases again and remains constant above a value of 0,501a . A similar dependence of the heat conductivity was found by the author in the case of iodine and bromine admixtures* The dependence of heat conductivity on the degree c:f crystallization is mainly determined by the conditions of the scattering of the pho- nons with increasing concent.ration of seleniirn the concentration of the admixtures is decreased and there with the meam free path of the pbonons increases. By this, the frequency of W.-,eir scattering decreasc3 and the anharmonicity degree of the; osci1lations and there* U fore the heat conductivity increases. The authors here evaluate this influence of the modification of the free path and the numerical Card 2/3 values, which -were found, are given. On crystallisation the free A=V, G. M.: Master Phys-Math Sci (diss) -- "Investigation of t1te effect of certain additives on the thermal and electrical properties of nele-nium and germanium". Balm, 1958, published by the Acad Sci Azerb SSR. 14 -,q) (Min Higher Educ TJSSR, Azerb State U im S. M. Kirov), 150 copies (KL) No 5) 1g."g, ih-r) 69396 SOV/137~69443423 Translation 11roms - ReLferattivn7y zhurzial, Metallurgiya, 1959, Nr 4p. p 155 (USSR) LI 17 DO AUTHORS: Ajiyev 0.m., Abdullayev, O.B. TMEg The Effect of the Admixture of Chlorine on Electric Properti.es of Selenium A VI PERIODICALt Izv.AS AzerbSSR, Ser. Fiz-tekbn. i khim. n., 1958, Nr 4, pp 23 30 (Azerb. r6sum6) ABSTRACT: The authors investigated changes in electric conductivity Cand thermo- emf ck of Se depending on Cl concentration (0.0035 - 0.5%) !ind tempera- ture. Crystallization of a smelted Se and SeCl mi:-,ture wait carried out under pressure first at 1300C, then at 2000~ (40-, minutes each). C1 admixture up to 0.125% raise 0 of Se (up to 1,000 times) t-le maximum is attained at 0.125% an then 5 decreases with higher Cl .!Lmount. Hole conductivity is preserved. The coefficient 0( within a raA!;e of 25 - 850C inorewies with elevated temperature. Blectrooonduotivi,ty in this Card 1/2 range of both pure and admixed Se increases with raising taiiperatures X 69396 SOV/137-59.-4-8423 The Effect of the Admixture of Chlorine on Electric Froperties of Seleniun according to the exponential law. If the coefficient Ok decrease, and concentration increase. It is concluded that admixtures energy levels in So,,, which are arranged at Cl amount increases, dissociatitm work and and effective mobility of' chari:e carriers of Cl cause the formation. of additional the upper boundary of the fillid-up zone. A.A. ix Card 2/2 51505 0 SOV/137-59-5-2.0665 Translation fromt Referativnyy zhurnal, Metallurgiya, 1959, Nr 5, p 172 (USSR) AUIRORS: Aliyev, O.M., Abdulayev, G.B. T=: On the Effect of Chlorine Admixtures on the Heat Conduotivity of Selenium vt r- PMIODICAL: Tr. In-ta fiz. i matem. AS AzerbSSR 1958, Vol 9, pp 20 - 26 (Azerb. r6sum6) ABSTRACT: The atuhor used the method of the stationary thermal f:1eld to investigate the effect of the admixture of 0.0035 - 1% Cl on the heat conductivity of Se. It was found that the heat con_ ductivity minimum was attained with a 0.03% Cl concentration. After the C1 concentration was as high as 0,5%, the heat con- ductivity approached a oonstant-value butdLd not, howeter, attain its initial value. The course of the heat conductivity curve does qualitatively not depend on the Se recrysta:llization and is explained by the presence in Se mainly of phonon heat conductivity and by changes in the cross section of ph,:non Card 1/1 scattering depending on the Cl concentration. A.L. ABDULLAYZV, G.B.; ALIYICV, G.H.; CHETVMVDV, N.I. Influence of Ga and Fe impurities on the thermal condu,:tivity of germanium. Zhur. takh. fiz. 28 no.11:2368-2371 N '58. (KIRA 12:1) (Germanium-Thermal proportion) GTHORS: Ali;,ev G. 11. Nbiiillayev, G. B. S0V/2o-!2o-1-1-9/63 TITLE: The Tenperature Dependence of the Thor7,al Cond.ictivity of Selenium With Small Chlorine Additions (0 tempitraturnoy zavisi- mosti teploprovodnonti selona s -primeslyu khlova) PERIODICAL: Doklady Akade-iii nauk SSSR, 19513, Vol- 12o, Nr 1, PP. 76 - 70 (USSIR) ADSTRACT; The present paper investifates the tomperitture dependence of the therinal conductivity of crystalline colenimp with different additions of chlorine. The samples of dif!eronl: chlorine content were prodneed. of a nixture of seleniiin tetrachloride and sele- nium (purity 99,996%). Vie amount of the chlor:~ne contained in the selenium was determined arGentometrically. The cooffi- cient of themal condiictivity was deter--:iined 1;~ means of the otationary nethod with a cylindrical apparatus. A dia,-ram shows the temperature do-endence of the coefficient )f th~ thernal conductivity upon different chlorine contents. The coefficient of thermal conductivity decreases with risin- temperature. Only i); the caae of pure an,.iples there is a c-ill deviation fron Cavd. 1/3 the lincality. Another dingraz~ shovir. the del)or!ence of the The Temperature Dependence of the Thermal Goiiductivityso~2o-12o-1-19116'j of Selenium With Small Chlorine Additions thermal conductivity on the electric coniuctiv4.ty for samples of pure selenium as well as for samples of different chlorine content. In all saliplas a li-near de,-ende!ice eX%sto between the electric conductivity and the ther-7n.1 conduct-ivity. With increasinG chlorine content the clope of the strai-it beco,-,ieu less. The straights expressing the dc~' ~endence (if the th-ermal conductivity A on the electric conductivity a oan be expressed by the equation A - kcr + c for smaples with End without chlo- rine additions, where k and c denote con.-tants in till samples. (The corresponding nunerical valueu are jiven). At all tem- peratures the thermal conductivity in the case of an increasing electric conductivity first decreases rind then increases. The total coefficient of ther!nal conductivity of a body is, an is known, composed of the coefficients of thermal conductivity dependent on phonons and electrons. X - X electron + ~ phonon' In the samples with and without chlorine additions A electrons is ertromely umall which is proved by the lack. of any influence of the mamnetic field on the thermal condiietivity. A raise of Card 2/3 temperature increases the scattering of the phonons on phonons The To.,.-ipcraturc Dependence of the Thermal of Soloniun, With Snall Chlorine AdOltionu and therefore reduces t,,c coefficiort of thcr!.lml conductivity. V'. dqtevionation of tile Tolt-An 'T P0 -, thnTacte)-;Aics Of the DDIVI)Ium rDctMars at; a conDei~nonce ol a ;):Irtl,,, iD oe.;)onaent,on EAD 130c,~-OIDD of Ow 0DD),.FAC3&'-)t Of VnOTMal 0011allCtiVity Of Solellillit a"Ll therefore aalsO on the decrease of the thermal scatterin-. Seleniu-n wtth an addition L) of 0,003r(w chlorine has ito -reatert thernal c-)ndiiAivitY at 800 (vhich corresponds to the operation-al t tire of the seleninn,i rectifiers). There are 4 fiiires zd 13 reforencon, allof w%ich are Soviet. PRESKTED: November 1, 1957, by A.F.Ioffe, Member, Aca2e-,; of Sciences, USSR SUBMITTED: October 11, 1957 1. Selenium-Conductivity 2. Canductors-Temperwwre fanors 3. Selenium--Heat transfer 4. Heat--Conductivity 5. Chlorine --Properties 6. Dry disk rectifiers--Analysis CaA 3/3 I ~ Q3, k I nil L. is I it'd. I Frp tp vv Ir r, 8 1; -, 4 i Oa jia 44 or UPI; U-4 I i 41 pu 03 MUM W. v V 0% lu A 4 E goo 9g Pt 0 3 ZR ...ni Amo to. v CHC 'A "it OHIO So -0 te V to o0 Hf-b.-i s,:,2 I bit .94t~- 1 0 t a i 11:1 - A1.0 9. 0 z . al a .4CO 0 iftfI A -74 6826,1 00 SOV/81-59-10-34022 Tzurislation froms Referati-vmn zhurnal, Xhimiya, 1959, Nr 10, p 28 (USS11) AUTHORSs Aliyev. G.M., Abdullayev. G.B. TITLE- On the Effect of the Admixture of Chlorine on the Heat Condu,ativit of Selenium *% PERIODICAL: Tr. In-ta fit. matem. &S AzerbSSR, 1959, Vol 9a pp 20-26 (Avarbaydzhanian summary) ABSTRACT, The heat conductivity X of amorphous and crystalline Se and. the effect of a Cl admixture on it has been studied. The increase of A at the transi- tion from amorphous to crystalline Se is connected with the reduction of the quantity of defects in the lattice which are centers of scattering of phonons. The admixture of C1 to a certain percentage Inoreexes the ef- ficient cross section of phonon scattering, which leads to the reduction of A ; at a further increase of the Cl concentration due tc, recombination of the admixtures and the formation of neutral molecules, A increases again. The ratio ;kcr/X. for admixture-free samples is equal to 2, in the case of samples with C1 it is, independently from the Cl content, equal to 3. Card V2 It is assumed that in the crystallization of Se the admixtuves are displaced/ 6826.3 sov/81-59-10-34022 On the Effect of the Admixture of Chlorine on the Heat Conductivity of SvIenium and are concentrated in the intercrystalline interlayer and affect their heat conductivi- ty - V. Ostroborodova VK Card 212 28016 S/081/61/000/015/CID5/139 ~Lj. D B101/B110 AUTHORSt Abdullayev, G. B., Aliyev, M. I., Bashahaliyev, A. A., Aliyev, G.M. TITLEt Effect of halide impurities on the physical properties of' selenium PERIODICAL: Referativnyy zhurnal. Khimiya, no. 15, 1961, 29-~(), abstract 156196 (Sb, "Vopr. metallurgii i fiz. poluprovodniicov".. 14., AN SSSR, 1959, 80-86) TEXT: The auLhors studied the effect of halide impurities on Vae crystallization rate, electrical, thermal, and optical properti-Da of je. X-ray analysis showed that at annealing temperatures from 60 - i~OOC iodine impurities accelerate Se crystallization. In the presence of I and Br, Se begins to crystallize at 600 C, 'while pure Se begins to crystallize only at 800 C. Halide impurities increase the electrical conductivity of Se by several hundred times. The depe.ndence of the hole mobility on the Card 1/2 28016 3/081/61/000/015/()05/139 Effect of halide impurities on the B101/BI10 impurity concentrations shows a maximum. With rising temperature the hole mobility in pure Be and in Be with iodine impurities increases, while their concentration decreases. This phenomenon is explained by strLctural peculiarities of Be which is a polymer, and by the effect of the inter- crystalline amorphous layers acting as potential barriers. On tranjitiol. from the amorphous to the crystalline modification, thermal conduct-ivit-y of Be increaLea from 3.13-10- 3t0 7-01-10- 3 cal/cm-3ec-deg (25"C). 1n this case spec.fic heat decreases. At 640 m/t the forbidden-band width of the amorphous Be is 1-94 ev, that of crystalline Be (at 680 m/t: is 1.83 ev. [Abstracter's notei Complete translations] Card 2/2 ALITEV, B.D. ;_ALIYEV, G.M. Effect of cadmium impurities on the thermal and electrical con- ductivity of selenium. Izv.AM Azerb.SSR.Ser.fiz.-mat.i tekh.nauk no.5:85-90 160. MIJIA 14:4) (Selenium~-Thermal pr9perties) (Selenium--Electric properties) (CadmiumY ALIYEV, G.M.; ALIYEV, B.D.; HERIMOV, I.G. Temperature dependence of the thermal conductivity of selonium with an admixture of cadmium 4.i4 Azerbaijani Nith summary ir. lineqlan]. Izv. AN Azerb. SSA. Ser. fiz.-mat, i tekh. nault no.6:99-101+ 160. Wfti 14:8) (Selenium-Thermal properties) 36796 S/137/62/6CO/004/058/2001 A052/A101 AUTEORS: Barkinkhayev, 10i. G., Aliyev, 0. M., Kerimov, 1. G. TIT1_': The effect of gallium admi~:ture on electric properties c:1 pure se- lenium PERIODICAL; Referativnyy zhurnal, Metallurgiya, no. 4, 1962, 50 - 51, abstract 4G331 ('7--v. AN AzerbSSSR. Ser. fiz.-matem. i tekhn. n.", no. 3, 1961, 63 - 74, Azerbaydzhanian summary) TMU: The effect of Ga on electric properties of pure Se was rtudied as well as the possibilit- of substituting by gallium the haloid admixtures applied at present in the industry. The ~e used had a purity of 99.9996%. Ga was intro- duced both as GaSe and in the.metallic form. When producing Ga and ce samples, a neehanical mixture of Se powder and mntallic Ga was charged into ampuales, which were evacuated to the pressure of 10- mm mercury column and placed in a muffle -zrnace where the temperature %..,as gradually raiued up to 8000C. The exposure was It hours and thereafter tho mixture was cooled vilth the furnace. Whcrv preparinS. Se and GaSe samples, the mechanical mixture in evacuated ampoules wa.-i heated to 1,1000C. The electric conductivity was measured by a sound method in the tempera- Card 1/2 S1 137/62/00/004/058/201 The effect of gallium admixture on... A052/A101 ture ranze of 20 - 2000C both on pure Se samples and on those with 0-:25, 0.5, 1, 2, 3 and 4 weight 115 Ga. It has been shown that with an increased Ga cor,,.entration the electric conductivity increases, reaches maximum, and then drops. At 41% Ga, added in the form of GaSe, Se changes metallic character of conductivLty into semi- conductor one. The electric conductivity of Se sm,,ples with a metallic Ga admix- ture increases with the temperature. The differential thermoelectronotive force was measured in the temperature range of 20 - 2000C. At indoor temperature the Ithermoolectromotive force of Se is 9141iv/degree, and it drops rapidly with the lncrea~~e of temperature. Samples with a Ga admixture have a hole type conductivity. GaSe and metallic Ga admixture8 change essentially the course of the temperature dependence of the thermoelectromotive force of pure Se. The thermoe:.ectromotive force of Se with a Ga.Se and metallic Ga admixture increases essentia:.ly with the &. A. temperature. The hole mobflity in ~e with a GaSe admixture Increase:i with the -temperature, and in Se with a metallic Ga admixture it decreases up :o 700C and increases with a further increase of the temperature. B. Turovskly [Abstracter's note: Complete translation] Card P,/P V'~700 . 38.360 S/058/6Z/C-)0/005/085/1'19 A061/A101 AUTHOR3; Aliyev, B. D., Aliyev, 0. M., Nerlmov, 1. G. TIME: Effect of nome metallic impurities on electrical and thermal proper- ties of hexagonal selenium P=-ODICAL: Referativnyy zhurnal, Fizika, no. 5, 1962, 29, abstraot 5E231 ("Izv. AN AzerbSSR Ser. fiz.-matem. i te*,Khn. n.", 1961, no. 4, 37 - 44; Azerb. summary) MIT: It is shomi that Bi and Cd Impurities up to a speciMs content (o.o4,5' Bi and 0.125% Cd) reduce the thermal conductivity of Se, bul, raise it if their content is increased further. Bi, Cd, and Ga impuri:ties raiije the oleo- trical conductivity of Se. Ga raises it to a higher degree than B.''and Cd. Bi and Cd impurities reduce the thermo-emf of Se, whereas Ga raises ill;. The thern.0- emf of both pure and im-purity-containing Se grows with temperature, The sign of -,-he thenno-erif of both - re Se and Se containing Bi, Cd and Ga inpurities, is A. PU indicative of the hole ineehanism of the carriers., [Abstracter's note: Complete translation] Card 1/1 ALIYEV, B.D.;.,ALIYVf,--G--M-:-- KERIWV, I.G. Effect of a gallinm admixture and tempr-rature on the thermal con- ductivity or amorp~ious and crystalline selenium. Izv. 0 Azerb. SSR. Ser.fiz.-ma.. I tekh.nauk no-5:39-43 '61. (MIRA 15:2) (Selenium--Tbermal properties) (Gallium) ALIYEV, G.M.; ASKFROV9 Gh.M.: KERIMOV, I.G. Effect of a sulfur admixture on the electric propertie:i of selen- ium. Izv. AN Azerb. SSR. Ser.fiz.-mat. i tekh.nauk no-5:45-49 ,61. (MIRA 15:2) '";II (Se3enium--Elactric roperties) (Sulfur) 'I 3A 1,2 Z/019/62/0191/005/001/001 0 DOOG/D102 AUTHORS: Aliyev, G.M., Abdullayev, G.B., Ba:-kinkhoyev, Kh.G., ct al. TITLE: Electrical properties of pure sele,iium PEXTODICAL: Prehled technicke' a hospodar"skel literatury. Energetika a elektro- technika, v-'# 19, no. 5, 1962S 199, abst.-act # E 6'2-26'11. Maruzalar Dokl. 7, no. 7, 1961, 569-573 TEXT: The author starts from the proven fact that the concentration of holes in selenium decreases and mobility incretses with increasing temperature. This phenomenon does not conform with the semiconductor theor-y-. The conducted 14/ experiments show that this discrepancy is clos(ly related to the chemidal purity il. of selenium. Diagrams show the curves of the cependence of electri.cal conducti- vity of Se (99.994%), Se (99.996%) and Se with small admixture of:-Ag and Si. These curves demonstrate that the decrease of (Jectric conductivit-1, with increas- ing temperature depends on the degree of puriv-. The dependence of' thermoelectric force on temperature was also verified. The o-I.Aginal article contains 4 figures and 16 references. ZA-bstracterts note: Complet;i translatiogn. Card 1/1 ALIYEVI B.D,j ABDULIAYEV, G.B.; ALIMt PA.; MIWVj I*G. Electric properties of selenium vi-~.h a gallium admixtuiv. DoU. AN Azarb. SSR*3,7 no. 3sl9l-196.161., CAIRA 34t 5) I* Imstitut fiziki AN AzerbSSR, (Seleniuz~--Eieotr-lc properties) 0 i, o A052/A101 ilb"11 HNS: Aliyev, G. M., Abdullayev, G. B., :3ark-,'nl:ho,,ev, Mi. G., Kerim ov, 1. 0. T TIP T_r Electrical properties of pure sele:.Aum FERIODICAL: Referativn3ry zhurnal, MetallurGiya, no. 4, 1962, 51, abstract *-'32 j ("Dolkl. AN AzerbSSR", 17, no. 7, 1~-51, 569 - 574, Azerbaydzhanian summary) Measurements of electric conductivity and thermoclectromotive force ef 019.999S);.7 pure Se were carried out. The electric conductivity a-,)f pure Se de- creases with the increase of temperature from iadoor to 1500C and tnen starts increasing. The decrease of crat'temperatures Ip to 1500C is explal.ned by the pre- vailing effect of '%.he decreased mobility over t1ae increased concentration of cur- rent carriers. The thermoelectromotive force at indoor temperature was q14/4,v/cbUw c,nd it dropped rapidly with the increase of temperature. The therm:)electromotive force was measured by the compensation method. The concentration of' current car- riers at indoor temperature was 5.70 - 1015 am-3. The measurements were compared with the data obtained or. cq.994% pure Se. There are 16 references,, rAbstracter's note; Complete translation] A. Gubenku) Card 1/1 33678 s/o58/6 i/OX,10 i P-/048/083 Yf A058/A1Ol AUTHORS: Allyev, B. D,,,.Abdu3.layev,.G..B., Atlyev, 0. M.,,Keftmov, G, 1, TITLE: Electric properties of gallium-dopel selenium PERIODICALl Referativnyy zhurnal, Fizika, no. 12, 1961, 359, abstract 120181 (Dokl., AN A:zerbSSR, 1961, v. 17, x:j. 11. 191 - 196, Azc.rb, sunimary) TEG: The effect of gallium-doping on the electric conductivity 6 and therLno-emf a of Se 'was -initestigated-. Doping wit q up to 0 - 125 wt % 01, causes 6 of Se to increase almost 160 times, after which 6 ilowly decreases with increasing Ga content. c(,of specimens with different Ga ccatent was measured in.the range 200- 20Q0C. The sign of oC always points to p-lype conductivity. Ue tempera- ture dependence of hole mobilityup for differert Ga content is plo~;ted, In spe- cimens containing 0.125 wt Ga,' ,4p at first de(reases sharply, then remains cor- stant. In the rest of the specimens,/itp increases with temperature, B, 011khov [Abstracter's note: Complete translation] Card 1/1 BARKINKHOYEV; Kh,Ge; ALIYEVO G.Mo . Electric properties of selenium -)f varying purity in 'the solid and Liquid phases. Izv. AR Aserb. SSR.Ser. fiz.-Mat. i tekh. nauk no.3t95-101 163, (MIRA Mill) VELIYEV., M.I.; KERIMOVp I.G.; _ALIYEV.*_.R!~~.; ALIYEV, M.I. Effect of ar7stallization cn the heat conductivity of sillenium. Izv. AN Azerb. SSR. Ser. fiz.-mat. i tekh. nauk no.4-33-.36 163. iHIIIA 16:12) ACESSION NR: AP4021708 I/633AVOW/000i'007i/0078 AtTHOR: -Darkinithoyevi Xh. G.; Amkerow, Ch. W; a,- ,*IY44 A TtTLZ: The effect of vi mercury admbdure on the electric properties of selenium SOURCE: AN* Aze rbSSR. Isventlya. Serlya fts. -matem. i tekhn. nauk, no. 0, 11963, 73 -78 "TOPIC TAGS: mercury. mercury vapor, selenium, electric con4tictivity, dif- fusion factor, componerst suspension., molybdenum ampule, therwoelectrornotive forc.os doner level, acceptor level ABSTRACT: Th6 Investigation h%to the effect of mercury impuritlas on the *let.! tric ptaperties of selenium was promjAed by the contradictory opLni6ns on 11,4,6 subjer-1 pubL-shed in literature. Ito samples involved In the. (oat were mo1rh- . den.urp. ampulas with selenium rend mercury. Following a special treatmint)~"# samplAs Were crystallized at 210C for 25 hours. The electric coaductivity aAd.. the i-14 0alectromotive force were then measured by- the oompe nisial.100i Mthod. . and th-e grapbs were plottedoa the basis al the -mean values of seireral ftiwwurs- Cwd ACCFSSION NR: AP4027708 me A.' The same samples were used for measuring the thermoelectromotive footce In relation to copper,within an B-10 degree gradient and 20-300 C temper- aNi-e range. The, experimental data reveal that the small concentrations of mercury atoms in. the selenium tend to reduce its electrical conductivity. This cao be explained by the assumption that the mercury atoms in the selenium pro- duce donor levels which Jncrease with increasing impurities, intensifying their,, compensation of the selenium acceptor levqla. Such an effect of the Impurities prIor to the full compensation of the oelenthm acceptor levelly, sh*uld leiLd to a reduced electric conductivity. The increusing temperature relationship of the: -6oncent ration and the reduced mobility of the current carrier in sislenium are natural from the point oi'view of the band theory. All the data pLiblished in literature indicate that the mobility increases and the concentratilm of the culor tent carriers in seleniwxi decreases with temperature.. But this problem, on the whole, is still not very clear. Orig., art. hai: 6 ftures ASSOCIA77CW: AN: AxorbSOR SUDMT"MD:~'00 D64LTZ AM 17Apr64 ENCLOI 00 SUB CODRS PH. CH NO IWJV 004 07MIIRS 009 CWd all - k.D.; ABDULLAILY.. G.B.; ALIUV) G.M. ALIM$ Effect of biomath impurities on the beat condaciivity an!l Belf-diffunion of selenium. Trudy Inst. fiz. AN Azerb. SSR 3-1:5-10 163,. (MVLA 16-.4) (Selenium-Thermal properties) (Bismuth) ALHEV, B.D.~iALIYEV, G.M. Effect of a cidmium impurity on the thermal and electric. conductivity of selenium. Trudy Inst. f iz. AN Azerb. SSR 3-1:19-24 16.1. (MIRA (Selenium--Thermal properties) (Selenium-Electric 16:4) properties) ABDULIAYLY, G.B.; ALIM., G.M. ,; BASHSHALMV, A.A.; MRIMOV) I.G. 0 Heat conductivity of some compounds of the type AIIIRV. Trudy Inst. fiz. AN Azerb. SSR 11:46-51 163. (NIRA 1614) (Se:niconductors.-TherTaal propertien) ABDULLAYEV, G.B.; ALIYEV, G.M.; BARKINKBOYEV, Kh.G. Thermal conductivity of selenium. Fiz. tvar. tela 5 no.12:.1614-3615 D 163. (PEIRA 17s2) 1. Institut fiziki AN AzerbSSR, Baku. Acc .FsSIGN Nit: AP4005130 S/0249/63/01!;1/008/0009/0013 AUTHOM i Abdullayeva G. B.- AliYOvs G. Me; Barkinkhoyev, Kh. 0. TITLE: Effect of gailium impurities on the thermal conductivity of hexagonal selenium SOURCEi AN A-.erbS!)Ro Doklady*# vo 19# no* 8, 196)0 9-13 TOPIC TAGSs selenium thermal conductivity, selenium, thermal conductivity, hexago- nal selenium, gallium impurity effect, gallium impurity, gallium, stmorphous seleni- um, metallic impurity, selenium valve, Ioffe formula, phonon mechanism,' absorption toefficientp crystalline selenium, nonmetallic impurityp crystal lattices metallic gallium impurity, selenium doping, phonon scattering ABSTRACT: The influence of metallic gallium admbtures on the heal; conductivity of crystalline selenium in the temperature interval of 65-450K has been studied* Cylindrical crystal agglomerates of pure selenium with 0. 0,25t 0.1,;0,, 1.0, 2.0., 3.4 and 4.0 wt % were tested. Their diameters were 10-12 mm and thoir lengths 10-13 mm. Tests were conducted under static conditions. To avoid.-adiation heat loss.". lateral surfaces of the specimens were coated with india ink and carbon black, It ACCESSIM NR: AP4005130 was found that. at 299K ik reached its maximum for the lJ19 admixture. A ;study of temperature-A relations for 3 samples brought out the existence of vdmima in the 300-330 ~0range. The electron component of A was estimated to be on time order of 10 -10 cal/cm sec degree. The phonon theory of beat conductivity indicates that for the Debye temperatures and.above, A is inversely proportional to T: KaA (1) T cu - cem - zpaa . 1. The present experiments confirmed this theory for T between the temperatures of liquid nitrogen and room temperatLire (with coefficient a varying from 0-75 to 0.98 for different samplos). At higher temperatures (350K) an increase in ?~, reaching 25-300% at 409K, was observed. This increase is attributed to the photon mechanism and to heat being conducted by electromagnetic readiation. The authors thank 0. G. Kerimov, director of the heat laboratory, for his interest and valuabla suggestions. Orig. art. has: 3 graphs, 1 table, and 3 equations, ASSOCIATION: Institut fiziki AN AzerbSSR (Institute of Physics AN AzerbSSR) SUBMITTE-Dt 23MaY63 DATE AOQ: 20Jan6h ENCL: 00 Card 2/3 - - - - . --. .-J' 9 ACCESSION NR: AP4005130 SUB CODE: PH I NO REP SOV: 015 I (ITHERs 004 Card 3/3 ASKEROV, Ch,~.LLjnj,_!L.~.A11ffl1JNDOVA, E.G. Heat conductivity, density, and microhardness of the syntem selenium- sulphur. Izv. AN Azerb. SSR. Ser. fiz.-tekh. i mat. navk no.2t83-89 164- (MIRA 17:9) -77~~M,26, F-T7 i~, ql~ 4at4 nauk, no.'s 12:~ 964i alictivi- _tAre at~l i . . . . . . . . . . . .r..6 V909410-4hi-AR 4 J 00 !~:_The :to x a e as, foll ..one at 40 48B!'ftd ~'49OKi- ihd ~'th lothet"at 45*:*or4~:~~k 360'i1;; i Plots condu ngo ~LTT lz. 4! . ........ ... .. ....... AP41D,446*,,30~l,,,I~',~~~:,,,.~ -by-' tb VZ;_ WWOM,~ Wain 6 b, yA;, f 6Uk*._, -.-0# "ex ', -S R I--- AM .--bf in. Vi 0-.t slaltO pt 'the t Jww, --Oftm*~j -,,-,cbw tj k a ~_;, to texpe a ure,~, 3t t 'Win ~_2 4" 'V u0b. i A ia" r, Ai4exy Tle t A". in Wy or gift, 4i~ _Okw L 8TREAd ffii ZI -ml 7/M ~-69 YAWA 02 U -T, 233 w0 -ACCZSSI 0446 Alt)=Rs,- jkkidin6i; -D in --*atemati a "Var ve en, Y"i 'Atl t aV6 "adn*1 io .7he -.O.Vor.. OEM I~mm yr JA 'A_!.69 N J '4644631 !ACCSSSION-m~ VIX, J)PI IOU* 3. at ei n, 1. n w a ',an Tyke co C6ndUCtiV Wall- weasu' ~ds Th 7t u r d.- oct it, nw Y-1 W .... . .f u 11 umls~ poure- ct,~ an Fi J .0 :be~d~ J~i; j., era _70 -the -~bnducuvkf rP,b.ouo:;-seieri.'~i&,;;~~ii~ilt'si,- liedr..,growt art.-:td.~i a ibited.- _::varibu -9 age a- -i~tkbatment by v ',an b t K"'; app-!~;k 4~v 0- tt -.o*i,ng,-- 0, Par Al r nc tit -Sn YA irtber, beait_trleo_~ _67 AM W.- IV 4604 tl*-_-Ar6:'d fects-idt d tb Lc--" e, order YW:Lo: -no.; n-Z 0-amworp ous..,seleh um-,TA da 13 Ai It ;P ~rl -'cu on nte 3p cl, IS ITI ~~,74t 41 i7- ~'j. ~A f4 -f.s "~U I "N4 -_"VN A4 ~ej OW "kaft Irk LurAkvv I Al g -0- WIX ; 7M g_Wl c 41. 0.4, Ac, %i_~, 7, ~-i I statt to f t 77 ......... . ',wa siz--ou ith'.-..' -Vit d'epo *V-6 ysta -EZU .". f' -"-Vacuum _ey, '_ST -i.-in a a 0 A t V" li I i 6 6 1 iiig'l osc:gv b gu ZATIO 1~11".0c4l 711 D 4~4~ lb, UAMA I c a Q 7 2.3504~;'65~':: WAR"(f) fO,233/.6_h/0'0_0fI6Q Lo 161 A _41TU: -New um t e 6eskIft khn r qf gre ~j j-A ah- -ant Lm- alloye -.60 t -on uw a loy-i-cs mukf:e en ..a 'Ud ele'riluwAlio _~_Mq __s Vy r g per A- ~i A i'~_ - amoun --of ~Sb-vr---~ t _~tilnlv ur-:--in --the ---curr Od od 6 AV6 .Of the-'_Adckew~~ ;ia ..... . ined by the ~ci upens'at.: me":L' on - h . n -XV 'the if ii~v' of 'Once ir& On:;'."UP_Dn -~ T o e ncr evei~ 60 meta conte4kt'j:'."~a ditiolia e f orme d-~ an d:- t! ~e., ndw d T" h i -aga u,,:' b~ - ef f ect. of, meta I V a e adWiti, .~on d hd temperaiurv;~ epend* ncv.~~q. ~jlcon. uct t III e ~Z. s rp 'j; e herease p0 a 0 tempp atuirtz.~.'x., fist averaged. valuel P r r gy-j omplit`.J~ d- om:'~'_t -arc em 0 ~s e On um- r pr V; t , -- I en'- c od ses-. .9 -gn- . ...... VC zero oxen, j.a 1_1, '! _. '. I c.. &Age eon- du i t e d' ronic~'.:cdn i~ct e:-ia i Con C -not.6d:~;.. h th A t 141 ~,AZCESSION NRt AP4028423 S/0181/64/000004/1018/1022 4UBMS: Abdullayov, G.* B.; Aliyevi_Rt M.; BarkirL-choyvvg Kh. G.; Askerov, Ch. M.; Larionkind, L. S. TITLEt Elsotrical properties of crybtallina and liquid selenium after deoxygenatiow ;SOURCE: Fizika tverdogo tela, v. 6, no- 4, 1964, 1018-1022* ~TOPIC TAGS: electric conduotivityl selenium, deoxygenation, thermoolootromotive forcep solid liquid study 'AB STRACT: -The authors measured-the electrical conductivity and the therm,)eleotro- .motive force of three samples of So in the tempeis.ture interval 293-7713K. The 1samples were characterized by the following impurity concentrations: '10_3~, 10-4.g, ,and 1075~ for the three samples, respectively. Measurements were made on all t1=ee samples before deoxygenation (ordinary Se) and on aamples I and 3 aftar deoxygerui,- :,tion. Different jumps in conductivity were observed during fusion of all three ,,samples of ordinary So. The activation energy of electrical oonduottrity was found ito be 2-05 ev for liquid Be of -uhis type. In the solid phase, the thormoelootro- Imotive force of sample I ordinary.Se declined with increase in temperature. During i Co,d 1/2 ACCESSION NR: AP4028423 Ifusion the sign changed to negative, and in the liq:aid phase it inoreased in Absolute value. The thermoelectromotive foroe of s=ples 2 and 3 ordinary So in the. ,crystalline state increased with rise in temperature. During fusion it fell sharply' 1(to zero), did not chanpa sign, and increased again in the liquid state. ..Afier deoxygenation, the condlictivity at room temijfxature doolined approximaUly by a fa6tor of 100. No jumys were observed. Tho aotivaticn energy of the conductivity- t .1in such liquid Se becaie 0.6 ev. The therTwelso'.romotive force of samplee 1 and 3 jin the liquid state indicates n-typa conductivity, increasing in absolute value. jIn crystalline Se of sample 39 no `ahermoel-,otromotive force was observed. It was observed in sample 1, but the valva wrzt t,.:%Il and corresponded to holti-conduotivity.: "The authors express their thanku to Profeslor A. Ri Rogell for his interest in the work and for his valuable hJ-rdc:.,1 Orig. art. hass 1 figures ASSOCIATION: Institut fl-,iki AN Azerb. SSR9 Baku (Institute of Physias, Azerb. SSR) SUBMITTEDi 18Srp63 ZNCL: ()b. OV'; arms 01 SUB CODEr NO REP S 004 Cara 2/2 ACCESSION NR: AP4039227 S/949/54/020/002/0027/0031 AUT11ORSs Abdinov, D. Sh.; Abdullayevj, G. B.; A3.iy9vj 0. M. TITLE: The effect of antimony admixture on density,, heat conductivity,, and microhardness of selenium SOURCE, AN AzerbSSR. Dolclady*) ve 20, nog 2p 1964o 27-31 :TOPIC TAGS: antimony, selenium, recrystallizationp selenium heat treatment ~ABSTRACT: The effect or antimony admixtures on the physical properties or selenitm, was studied. The samples consisted of antimony and selenium p)wde-.,a idiced in various proport ns. These powders wore poured into quartz am:?ules wl-,iich were .evacuated to 10i& mm lig and sealed. In this state the samples were hoated in an oven at 850C for 8 hours and cooled to roon temperaturee At this stage the samples were amorphous. The md-,-~,,,uniments of their heat conductivity and dens1ty were made before they wers replacc,d i i the ampules and allow(3d to crystallize at K, 130, and 180C for one hour and at 210C for 60 hours* After each crystallizatit,,in period the ,relation between the physical properties of every sampleand its antiniony content was studied. The variation of the heat coriductivity coefficient or aiii1enium with Card ACCMION NRz AP4039227 .respect to antimony concentration at 20-22C is shown in ng. 1 of the Enclosures, where the conductivity is seen to increase during the transition from the amorphous to the crystalline state. It decreased with the increase in antimony conto&e., to 0.125,40, beyond ,rhich point it started rising. This behavior sras explained by. the ,hypothesis of V. N. Lange and A. Re Regell JFZTj v. 1. no. 4. 1959) which states -that small quantities of antimony distort~the crystalline lattice of nelenium, while larger amounts of antimony have the opposite effect. The variation in the microhardness, thermal conductivity., and density of crystalline selenium with 7respect to the antimony content is shcwn in Fig. 2 of the Enclosure8e The micro- hardness zainimum also occurred.at 0.125% antimony content. In order W check the accuracy of the experimental results, the variation of selenium properties was .calculated according to the formula derived by A. V. Ioffe and As F, loffo'("DAN .SSSRII) 1954~ v. 98, No. 5). The theoretical and experimental data correlated closely. Orig. art* hast 1 tableg 2 figuress and 3 formulas* ASSOCIATIONs Ixwtitut filiki (Institute of Physics) SuBmiTTED: l9jul63 DATE ACQ t 05Jun64 ENCLs 02 SUB OODE 1 54 GO NOW SOVI 010 OT=s 002 2/4 i11i!C-~-F1L14MMwM1Mr;1wrff P 9 7 -7- ACCESSION M AP4039227 F.NCU:6URE: 01 Fig, 1, Relation between. heat conductivity of selenium and the 81"UmOnY r4 M content@ 14 hr) hr) aelenium, glass j JIM Cird 3/4 A=4SION M AP4039227 RNCLOI;VRZs 02 Irig, 2. FAlation or microhardXMISS heat conductivi (A), and density of.selanitm to the antimony 47 4.16 N V N 4 it is -Car4 4A In wi .91F Iii-I t i,4 Dnanow,;~11 n i~vjF 4T Pik- er ot~1!3!n . . . . . . . . r 004 ~900 ov en Im War C -ALIM t,6 t%,-, ent nv-"iiW Alt- uence-, n Xy il,~Ai.9 "Por'-t on~l Oidi -2 ap -e rA: zw~ =el oulds TA "ar a, *AS-ff meter e-~ -etani Th -,~,fojr the f f -e -- - - w . . res Y'de'd -L.')fl-th-_ EP ll'~abs( ardi '_,Oom-_DPPVLand.Imn 7K.:-'-. A.'-v,, Me n a t1_ f q!- -.41 lit I thl I li 'f6i ;-11i z~-Tiirtd--w ;dt '66 - ~A [ ~ 'A : - . "'t'*' __l cl- --J~i _09. ~ 0~ _-.' y,-,--:Aqrely-:,.tr pllois'*_~'~- e. i _eAr, jj~j t ii r'h-, 6* .'.. lEh' - _Lth, a ~~ 6~~` a n . . . . . . . . . . . i a , cl n. OMP C~ Y_ I$' 11a) Tte, and 61 e at Li tUtL th et ad iiictxlc,,- cobdu'. C' 1"t era -,.o '-.creases- y ftd-thervalllelif- approxAmit It ee f be:$- 4 effec as ~,eMoVajr of oxygen.. r' jen ~t e ~,G a MpItU4 :I. fttrodU6 ~dAnt*'-Ahe se e i c6ndu~ #*it* appears - n. tt b -solid stat e at -oo-OW jibe- welting OS es dt~i- -the-nmabeiandA,6i on -raq,,Zvor i *Ogj'sd tb are We tb rl~aaiwlbe: v ng-mlt Plum no' 02 A$SOMV )0 17W A ALIYEV, G.M.; URICTFUNA, L.S.; WHALLIUM, N.Z* Production of selenium single cryst-,als. Izv. 0 Azrcrb.SSR.&--r. fiz.-WI-Ji. i mat. nauk no.41.79-81 164. (MIRA 181.3) MEMITI'l'EVA) S.I.; ALjfl~; ABDINOV, 11.6ii. :.Newly deLected properties of selenum of high purity. Jzv, All filzeib, .SSR.Sv-r.fiz.-,tek:h. i mqt. nauk no.4L~10-,L-108 161.. UAIM 18,-3) L 30 U&($).r2/EYJTtM)A N-10/m/Y.Pif "Aym, (,m)/jwwAqP_~b IIR/0249/65/021/0' 1:ACCESSION JIM- AP5015450 03/0018/0021~ AUTJHO'RS: kbdullayev,~ 0. BO D Sh Aliyev, G. M., Abdinov, V) TI TL. E: Efrect of oxygen on transport-phenomens, in se lienium of bigb purity ISOURCE; AN.AzerbSSRO; Do~ladyv v. .2l.. no. 3, :4~965, 18-21 iTOPIO TAGS.: selenium, selenium reotifier:, thermal conductivity, electric-conductivity, thermal emf, Hall offect, carrier density, Hall mob13ity ABSTRACT., The authors report -results:of Investigatioinis of the inf: u-- ence of arti 0 y impurity, whirh effectively compensates the acceptor action of n, on the electi)ie propert:Ies of crystallIne and .!liquid , se I Eni and on the thermal conduol;ivity of crystalline selen- _~berore and~after 4 ~ium of~pu;Lt leoxidation and after y 9.9999 per aeizt' oxidation.~ The deoxidation Was,.-.by, the mw~bod of P. 71. Kofzyrev (PTT on v..-, 1, 213,L19-50- The'..Procedure~~for measuring electric duotivity,. and tbe'tliermal coniduotioi-tit'as--'iftno'tiono:,of the impuri4 es and~'.~of ..t~c cc, .3 L 35374.6 !ACCESSION 1JR: AP501545o Itemperaturd was described e*arlier.(FTT v 4 10180 1964 ajA elsewhere fThe,Hall e,fe o t was measured with.direct current by a corml:ensation method in it magnet'A'.o field of .20,000 Oe. The article ino:l.:udes a. 0 .]table of the dependence of the electric conductivity,, the 1 thermal- o n jductivity, the Hall density, and the Hall mobility prior to deoxida-'., ! C I tion, and also of tbe electric ac.,nductivity and tberrral a ~,nductivity iafter deox:Ldation, as fUnction~ of the antimony content, il.nd plots of I the temperature dependence of the electric* conductivity bii,xc%re and after deoxLdation. The results.show that -61he antimony hm~ different e f fe c ts on ~'tbe e lee trio and thermal 'a ondue'tivitie s . be fore i'and af ter deoxidatio:i, and with: the antimony-content. The jtimp-in.the loonduotl,viby-occurring at the melting point also depends'.c:;n the~oxyge i contept. rhe results have a~;_direct b6arirl'g on:the fact tbat. various, mechdnical properties of selenium rectifiors and photocel]LB are governed p rincipally, by, tbeir -oxygen content. Orig., art.; has: 2.: figures an-1, 1 table, ASSOCIATION: Institut ft z iki,'~ _AN:1.zer'bSSR:' (Institute of Phys ics j.AN AzerbSSR)-~4 12 i3 L M31-,-66 J~AdCESISION.:,IRm .AP5015 ' UBMITTED:'! 4sep64, 00i UB CODES,,; SS V: NR REF SOV 013' 002 ' VELIYI,V, M.I.; ALIYEV, G.M. Effect of sodium admixturen oij the eleatroconductivIty of selenium. Izve AN Azerb, SSR. Ser.fiz.-tekh. i mat. nauk no.1:66..70 165. (MIRA 18:6) L 32952--,c6 ENT TI IJP(c) RDNAAV ACC NR- AP6017056 SOURCE CODE: UR/0233/65/000/(;04/0074/0079 AUrHOR: Abdinov. D. Sh. Allyev, G. M. ORG: none 1kV1 TITLE: Effect of oxygen addiVins on the electrical properties of solenium SOURCE: AN AzerbSSR. Izvestiya. Seriya fiziko-tekhnicheskikh i mateplaticheskikh nauk, no. 4, 1965, 74-79 TOPIC TAGS: selenium, thermal (mf, Hall effect, activation energy, Hall mobility current carrier, electric propeity 11 ABSTRACT: Measurements were maee of the effects of Sb addition& tho electrical con, ductivity a of Se before and after deoxygenation, aF-7er oxygenaron, as well as of the temperature function of the Hall effect in the solid and ~~ tates. The work was t carried out to fill a gap in thQ literature. The antimony was added as Sb and Sb2Se3 in amounts of 0.05, 0.1, 0.125, ).25, 0.5, 0.75, 1, 2, and 5 wt %. For ordinary Se (prior to deoxygenation), the a decreases with increasing content of Sb and at 0.5% it reaches a minimum; with further addition of ~b, it increases. The a was found to be the same for Sb2Se 3. At 20-2200C, the a prac--tically does not change - At the melting point, the a drops abruptly. AP:er melting, (starting at 2400C), it rises exponential. 1y with temperature. Activation energies AE, calculated from the slope of the Ig vs 1/2 L 32952-66 _0 A(~6 I~R, A~~Oij 6 vs 11T curve, are affected littlij by small concentrations; starting iit 1% Sb, AE gra- dually increases and at 5%, reaches 0.52 ev. In melting pure Se, the concentration of the current carriers decreases fvom 2.27 ,1014 at 2.60C to 3.20-1013 (:M-3 at 3500C and it continues to decrease with fui-ther heating. Measurements of magnotic susceptibilit, in the solid and liquid states indicate a decrease concentracion of holes during melt- ing. Temperature function of tho! concentration of the current carriers, determined from the Hall effect and the thermal emf, is about the same. At room temperature, the Hall mobility in pure Se is equa' L to 10.45 cm2/v.sec and is in good agreement with li- terature data. The mobility of: Iioles in pure Se Prows insignificantly with tempera- ture in the solid state and in welting it Leops abruptly, but in the liquid state, It* grows exponentially with temperature. In conclusion the authors thank Professor G. B. Abdullayev for supervising the work and Ya. N. Nasirov, R. Kh. Nani and V. B. Antonov for assistance in measuring the Hall effect, Orig. art. has: 2 tables, 3 figures. SUB CODE: 20/ SUBM DATE: 06Jun64/ ORIG REF: 029/ am REF: 005 2/2 ACC NR, AP6005610 SOURCE COYZ: UR/0233/6-5/000/00 AUTHOR: Dzhalilov, N. Z.; Uiyev, G. M. ORG: none 00901/0095 TITLE: Electric properties of sclenium SILTI :1e crystals SOURCE: AN AzerbSSR. Izvestiya. Sorlya fiziko-telchnicheskikh i natematicheskikh nauk, no- 3, 1965, 9U-95 TOPIC TAGS: semiconductor, selenium, selenium rectifier, semiconductor single crystal ABSTRACT: Conductivity of Se crystals obtained from vapor and from melt was measured at -170 4215C, in vacuum (0.001 torr), in darkness. At room temperatui,e, the conductivity was 2.3 x 10-6 and 1.1 X 10'7 mhos/cm for vapor and melt crystals, respectively. Curves of'conducti~rity along and across C-axis v9. temporature are shown. The above data is comparel with that avialable from Soviet and Western publications of 1938-64. Orig. a,-t. has: 4 figures and 2 formulas. SUB CODE: 09 / SUBM DATE- 1OMar65 / ORIG REFt 013 / OTH REF: 014 Card 1 39586-66 EWT(1)/E'A(T(M)/E'M(f)/EWr.(z)/T/EWp(t) IJP(c) Rl)#/JD/GD/GG/GS ACC NR: AT6001330 SOURCE CODE: UR/0000/65/001:1/000/0027/0029 AUTHOR:. Aliyev, G. M.; Larionkina, L. S. Dzhalilov, N.Z. AES029== '.~ 40 'k-L'cr-~_0 led TITIX: The production of selenium sin..le c ystals_ SOURCE: AN AZPrhSSjj. Tristitut fiziki.. Selen, tellur i ikh primeneni.ye (Selenium, tellurium and their utilization). Baku, Izd-vo AN AzerbSSR, 1965, 21,1-29 70PIC TAGS: selenium, single crystal growth, single crystal production, growth crate, pressure dependence, illumination, ultra high purity metal, heat treating fur- nac~-_ &BSTRACT: Methods of increasiRg the normally slow SMO_wth rate of selenium sinple crystals were studied. The growth rate is slow owing to the closed chain-like struc- ture of the amorphous selenium molecules. The single crystals were grown from a vapor in a vacuum and also unde-r slight pressure of argon or helium. Three tubes made of Ho glass (50 an high and 3.5 cm in diameter) were filled with powdered sele- Ilium of 99.99999% purity to a height of about 6 cm and evacuated -to 10 3 mm Hg pres- sure; two of these were then filled with argon and helium respectively to a pres- Card 1/2 L'39586-66 ACC NR: AT6001330 sure of 1 atm. All the tubes viere then placed in a cylindrical furnace and heated to 2600C (a schemirtic of the apparatus is shown). After 8 days at 2600C, the tubes were quickly removed from the furnace. On the walls of all the tubes, as a result of the removal from the furnaco, needlelike crystals grew away from the wall toward the interior and slightly downuards. After crystallization, the tube walls were covered with a red deposit in the case of helium and argon and with a gray deposit for the vacuum. For the vacutyi-grown crystals the needles were sho:rt and cactus- like, while in argon and heliwi the growth was typified by a uniform density of needles of lengths varying frai 0.5 to 1.5 an; in helium the needles were slighi v longer. An x-ray rotating pattern of a needlelike single crystal of selenium is shown. The increased growth rxite of the selenitmi resulted in the longer crystals. The lack of data on tho the:.Tna.L, electrical and photoelectrical prress their gratitude to for the x-ray pattern. Orig. art. hits: 3 Agures. iSUB CODE: SUBM DATE.- IONar-65/ ORIG RM 002/ OTH REr: 003 C ard 2/2 Ilb L 049-71-67. AC&~~023950 "&R ~5~_ i1-03 Y16~ /6. io 1606 /0 66510( AUTHOR: Ahundovaj, E. 0.1 Askeroirp Cho Me, Aliyevp G. M.; Abbasovy R..G. ORGI none TITLEI Effoot of sulfurTZhiorim"and dysprosium Impurities on the oli)otrioal oon- d2g~ f hexagonal 61 liquid'solonium (41 -V1 SOURCES 'AN AzerbSSR. It,r. Ser fit-tokhn I matem. np noo 69 1965, 69-?% TOPIC TAGSs gulp"r p.,eh~qane $ dysprosium, semiconductor conductivity, solenium_, ABSTRACTt In order to clarify the influence of impurities on the forription of current j&f(the effect and the jump In the electrical ocnduotivity or of selenium on A21ti , of a] wtivoli 59.999 and S, C1 and Dy theT of soloniwi of brands B nd 34 (rasp( I ~n the hexagonal modification and In the liquid ate..to 'including the 99 -9999UJO melting range as studied. Fig. I shows the curve of 6 vs. the concentration of impu- a itios. It is seen that By increases d by a factor of 10., and that tho higher the con- centration of Cl, the more slowlir or reaches a mocinum. Thi:3 indicate:i; that Djr irpuri- ties can be studied in the produotion of selenium rectifier3 and can be used to re- place the volatile Cl IMurities, Cl strongly increases d in B4 solmtium, wheyvas 5 strongly decreases it. AstuO Df the temperature dependence of(I shrwed that dr In the solid state and its Jump an ~nelting change subtitantially with the impurity coacon- .trationse C1 aato like co7genj creating acceptor levels in Se, and thus inores-;ies Card b~ L o4971-67 AC(f 950 the curont cuTier concentration szA herxe I . 7he decrease in a' ca-.ised by S is apparently due to the fact that the acceptor action of MIgen is Part~), offset by Sul- fur impurities, which decrease the carrier concentration and hence 0. The jump in a on malting is due to the presenc,i of impurities in selenium which aftei- meltinig become inactive. 7h conclusiont authors thank Prof. 0. A, Abdullayer for his steady Interest and useful suggestions. Orig. axt. has 5 fiFr-es, I UVG-a I formitla. Fig. 1. Ele^,tAeal conductivity of selenium 10 .4 vs. concentration of C19 S aul Dy impurities$ 1 Se+%M; 2 - So + %S; 3 Je + SUB CODEz //~20 SUBM DATEs none/ ORIG RM 008/ OrH REFt 009 M T (m )/E_4 P (" tA- T IIJF(c) I 1,3MI-66 __Ei RDW JD/,rj ACC NR: !~P6017058 SOURCE CODE: UR/0233/65/000/004/008ii/0089 :AUTHOR: Vell'yev, M. 1. Aliyev, G. M. ORG: nooe TITLE: Ef-lectl- of sodium on the heat conductivity and density of selerium SOURCE: AN AzerbSSR. Izvestiya. Seriya fiziko-tekhnicheskikh i matemE,ticheskikh nauk, no. 14, 1965, 84-89 TOPIC TAGS: selenium, heat conductivity, sodium ABSTRAM Density (6) and heat conductivity Q0 measurements were made on Se (99.9999 purity) containing 0.034, 0.17, 0.34, 0.85, 2, 3.4 at % Na. The tempi~rature function 0. of A is expressed by X,~-T . For amorphous Se, A has a maximum for 0.17 at % Ila and for crystalline Se, X has a minimizi for 0.34 at % Na, after which the pro:,ierties of both approacb those of pure Se. Th,t absolute values of a decrease with an increase in impu rity content. With the additi,.)n of up to 0.034 Imt % Na a increases (,o 0.153 g/CM3 ; further increase to 0.85 at % decreases a to 0.068 g/CM5. Measurements of x-ray and pyncno-metric densities of polycrystalline Se and the addition of Na confirm the assump tion that the Se has vacancies and pores. Orig. art. has- 3 formulas, 2 tables, 2 figures. SUB CODE: 11, 20/ SUBM DATE: IOMar65/ ORIG REr: ow OTH ixr: 002 ~Szrd 1/1 WW RDUI/,, ;L 96586 66 C NRt 3.1427 SMCS COD'Et tW0020/66/167jI.004/0782/07% AUMOR: ALIM _Ao M*; D. Sh.;'Mekhtiyuva, S. I., ORG , Institute of Pbomics, AaideW of Sciences AzerbBSR (Institut fUlki Akademii$'. naukAzexbSOR) TITLE: JldtaLui as a p6l*zver. iiemiconductor mid the mecbanism of its ~oonductivity SOURCir. -784 AN BOM DAladys vo! 167p no. 4p 1966) 782 ITAIM s seleniump' polymer': structure., semiconduat*ad'-wep samiclinductor. con- ductivit; thermoelectric pme.rp HaU,effectp liquid state., carrier diknsity.,Ac.4,4C_ tRAM In view of the fact~that the mechanism of condu ivity of iielenium.hau not been fulky explained and.the contradicUoryp U-1; the Iniluence experimental data on the electrical propertites of selenium of different lt#?) espect" oxygep ,..has not been =fted j nor 1*0 - th6--meltifik ot selenium. and its liqu1jV ielvate :.studied Ahe-autbors present~$6!_iesat.3 -of &%comprehenskwlnvesti~atlton of-the elec. tric conductivity,, thermoelectric power# and Hall effect in solid and'liqiAd selenium (from &to 45o*)j, including the melting region, :The experiments were made with -very pure selenium -type B5 (99.9M,~%) before and after removal cf oxygenj, ~ and mith dif- ferent d0grees of oxidation anfl:with different amounts of omygen-compt=ating inpuri- ties (Sbp Cd~ Mn) The electric conductivity (a). of solid and liquid selenium in- creases with the temperature expontatially,, and experiences an abrupt decrease during melting,;~11 The carrier density is found to be independent of the temperature (-102,5. cd* 3) -2he jumplike decrease cf on melting is due both totho.dectitase in the Cj~rd 3/2 1 UM: 621-315492o2: %6.23 W. ju~63.1427. conce'.,Aration and a decrease in the mobility* The constancy of-the ceirrier density Indicates that the crystalline--and liquid selenium are iopwity semicohductors and all the. a nized, Removal of the oxygen decreasetjr~ the conductiv- A i c~oth'ec'discontinuity at the melting point. S.Iim~ilariy ination o1! the oxygen elimlmttis also the Hall effect. It is concludtid that the )n eliminati(, of o3Wgen is &O'Coriq, ed by a decrease in the carrier dewity by -100 times andAn the carrier mobil1ty W -10 times, If is therefore a0sulied that the oxygen at(os in the po4rwei~chain of selenium produce acceptor cerrtwv thus in- creasing J"he hojeLdensitY2 and+ '' decrease the intermoleculw bayTiers) 1~hu 0 increasing the carrior mdbi3-1tj-., It In tt~erefore concluded that seleniump Me i*ganio sami- conductor-O ive t is.very, sensit o the method of preparation anti beat tti tmenti lbe'r authors v0, grateful to P~Mresfl or 4. B. Abdullwev for directing the Vork end Doctor of ftsiciLl-Mathematical Scien6oe M. If, Klinger for valuable imWice, )ThieLreport wited by. Academician V41 A* X&rgin 23 aj]YLX Orig. art. a 2 figure q65 h pres SU 1 fOM dA. MWCODES' 20/ sum wa L OJYL 00.9 DE M I 4~- T., L 0725M7 d)/EWT(m)/R I _J. I WE"M __.. _P RH O23,W6U/O8A-i/e0_7T&*4] AdIC NR, A16028% IJP(c)* M SOURd" 6 ~AUTHOR: Abdullayev, G. B.; Mekbtiyeva, S. I.; Abdincry, D. Sh.; Aliyev G. M,. !ORG: none . ......... TITLE: New properties of high jurity Seleniun SOTACE: AN AzerbSSR. Izvestiya. Seriya fiziko-tc--khnicheskikh i matemitticheskikh rauk, no. 1, 1966, 77-84 TOPIC TAGS: selenium, chemical purity, oxidation, thermoelectric pover, heat conduc- tion, physical diffusions activation energy, semiconductor conductivity AMSTRACT: In view of the fact "uhat many properties of selenium are titill not under- stood, the authors,4iave chficked on the hypothesis that many of them tire due to the presence of oxygen", bnd oxygen cDmplexc.14,4~