SCIENTIFIC ABSTRACT G.S. CHEREPANOV - V.I. CHEREPANOV

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• Collection: Scientific Abstracts
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• Document Release Date: June 12, 2000
• Sequence Number: 12
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

CHEREPANOV.-A.S.g.,gornyy Inobener
Increasing the conditioned liunp size in stone =0 cement .plmt quar-
Pies- Nauah!~imaob- lGD 21222..32 163. (KMA 17t2)

Characteristics of the sitress of gome mmscles of the speech
apparatus and their correlation with changes in the LEG in
logoneurosis. Zhur. nevr. i pslkh. 65 no.13:1721-1727 165.
0.17-RA 18:11)
1. Laboratoriya eksperimentallnoy patologii ;iervnoy sistemy
(zaveduyushchiy - doktor biolog. Pauk T.V.Danilov) Tnstituta
el~sperJmentallnoy me(.Utsiny AZiN St.'..;R, Lenlngrad.

CHEREPOOF K A.- MMIMOF,, P,G.
Modeling I the teppratu" field of the hearth bottom of an
open-hearth rwmoe by means of an 91-12 electric inte
grator. Iur. vys. ucheb. sav.; chern. rut. 7 no.2:173-177
16" (KM 17:3)
1. Sibirskly astallurgichookiy institut i InsustekLy ustanuni

CHEREPANOVP K.A.
Modeling the erystallization of an ingot by rieuris of in Fl-
12 electrointegrator, Izv. vys. ucheb. Lav.; chern. met. 7
no.8;171-177 164.
1. Sibirskiy meta-Uurgicheskiy InstiLut.

DANIIDV, V.I.; INTROPOV, K.V., osmotrshchik-avtomatichik;
KHRIPUNOV, V.S.,, onmotrahchik-avtomatchik; SHASM4URIN.. A. Te.p
osmotrahchik-avtomatchik
Are emergency brWw accelerators necessary on freight trains?
(N= AA 6)
Zlek. i tepl. tiaga 5 noo3t43 Mr 161,
L Kaster avtokontrallnogo stantaii Sverdlovsk-Sortirovocbanay
(for Danilov). 2. Starohiy master punkta takhnicbeakogo osmotra
stantaii Sverdlovsk.-Sortirovochnaya (for Cherepanov) 3. Stantmiya
3verdlovsk-41ortirovochnaya (for Antropov, Khripunov, Shashmurin)o
(Uilroade-Brakes)

CUMTILLOV, 14. , mothodist, 2eislil.-hOMITY "Chitcl 1 3111,01.7
--- ~, I ~ .~~ -~
" i .
I Toachern study induatrial clitirnijitry in factorion. Kh 1-.v
shkolm 14 no.4:92 JI-Ai., 159. (141Rk 12:11)
&,- ,-A

AYZINSHTADT. G.Te.-A.; TlkllOIIDV, N.K.; ~MMW N~.
Basic probless relative to oil and gas potentials of western
Kasakhstaue Sov,geol. 2 w.9:56-69 3 '59. (EPA 13:2)
1. Vaescruzz" nef"Yanoy nauchnn-Issledovatellskly geologoras-
vedocbqyy Instliat (VNIMI).

AYZZSRUM, G.Te.-4.; GRINBJI*q I.G.; DITANOV, II.F.; NWOLIN. N.V.; TOYMY,
N.I.; CHUMANOT JJ~L~--JMITOT. YA.S.
Outlook for p9trolem and gas in vestern rasakhotan and.basic trends
1n regional prospectings Geol, nefti I gaza 4 no.2:10-15 1 160.
(mm 13:10)
1. T96207=07Y neftyanoy.sanobso-looledowatoliekly institut, Teenoymmyv
im-kno-issledovatel'skiy Institut goofizichesidkh metodov rasrodki
i Tsesoymsnyy nauchno-issledovatelsokly goologorasyedochW7 Institut.
(Zasakhetan-Petroleum geology)
(Muakbatan-Us. Nstural-Geolokr)

CH&WANM, N.N.; SIZPAKOVA, G.I.
Structure of the.southmatern part ol' the southern Nangyahlak
Peninmila (in the area of the Cape hischar,,y4aund agion).
Trudy VNIGRI no.218:74-76 163. A 17~35"
(MIR I

CHBUPAMV.!v -N v
jkta'blishIng -the ap of drift too br crystallograhlo Invostigationse
Probl. Arkto no.2-.179-184 157. (KIRA 11: 12)

MCLOCHNOV. G.V.: CHWWj4NOV. N.V.
'Use of the electronagnstic dipole method in determining the
thickness of sea Ice. ]Probl.Arkt.1 Antarkt. no.3:77-83 160.
(MIRA 13:9)
(Sea lee-Al"surement)
(21setpouftnette prospecting)

no
.4n
Fr
77-,

DNMIYBTA. SIA.; 3HILINSIATA, N.A.; PBTRUNIZINA, A.H.;
SMOMM, T4*L*
Meet of alcotinte'acid intailm on the codoiWiragemse content of
the blood in neuroses and sme psychoses. Truety Instfistol,e 3:
449-457 ~56. 101:1)
Is, labormtortyu blokbiall. pitantya I pishchoverentra, sav*dwaboheya -
A.K.Mraulldnae larynap klialks, zavedWushdwp - 1.A.Kmshdv*-'
ft1khtafrichaskays k1litkof IspoIrWayusbably 0psannosti ;TV;;;;-
shchogo - N.N.Traugoti. Palkhlatrichasksys klInUm Toyenno-uProkor
asditsluskoy almdauti, savodVushchiy - A.B.Chistovich. Kliniebask"s
narw"afthiatrichiskaya bolluttea Swerdlovskago rayons, glavnyy
vrach - Z.I.KarLehova.
(110013310 ACI D) (On 1 200MBES)
CM1 QW4 MATIMMICAL)

CHRWA
Prize-miming plans for the K.E. Tsiolkovskii State Museum in
Kaluga Na stroi.,3os. no.5:22&-22b My 161. MIFA 34:7)
(Kaluea-4eronautical museums)

... GMVANOV... S.K..
Sow4w of the $pool@@ of the 'puera Zolkem %mob md Hoidpt*Ua
Plambes, let. NO- "s 18:58-72 157. (UM 20:6)
Wm)

BORISOVA, A.G.; VASILMY, V.N.; VASILICHFNKO, I.T.; KIRPICHO)TKOV, M.E.;
LEONOVA, T.G.; LIPSHITS' S.Yu.) TSVELEV N.N.; PHEREFANOV~ S'.K.;
SMISHKINI'B.K. (deepasp-d]; BOBROVq Ye.Ge. proof, doktor
red, tome,
[Ci6hdrioldeseel Gichorioideat. Moskva,; Izd-vo Nauka, 1964e 796 P.
(Flora SSSR, V0102W (MIRA 18z2)

CHEIEPANOV, V. A.
CHEREPANOV, V. A. - "Objective Methods of Controlling the Quality of
Phonograph Recordings in Mass Copying*" Min Higher Education
Ukrainian SSR. Kiev Order of Imnin Polytechnic Inst. Chair of
Acoustics and Sound Engineering* Kiev, 1955. (Dissertation for 'o-1;
the Degree of Candidate in Technical Sciences).

Is
GORIKOV.A.M.; SOKOWY.L.S.; CHEMANOV,V.A.
On the problem of a radical loprovement In Noocow$o munlelpal
and suburban transportation system. Gor.Ithos. Hook. 29 no.6:
3-7 Je 955. (KLRL 8-8)

GIZOWANW* TeA*
MAP
Proposed plans for tw' development ~ of the public trausportatica, In
Nomeove-Ger.khos.Mook.30.n's.12:11-15 D "56. (NIA 10:2)
1e pla-
am,

CMMPANOV V.- STAPANINKO, G.; KARPOV, S.
Uperlenco to conwr castlvj~ Isobr.1 rats. no-8:39 Ag 158.
(NIRk U:9)
1. Sotrudalki unuchoo-Iselodevatel!sImSe uplIsco
Watem)

my/58-59-5-11178,
_Translation from: Rereratlvw Zbarna Mike. 1959. Nr 5. P 179' (USSR)
AMM: Cherepanoy~'
-Nethod
Frequency Prople-Irties or. the or:Phot)electric Analysis
PMIODICAL; Tr. Tmanrogsk. radlotekhn In-ta, 1%7, Vol 3, Nr 2, pp 15 19-
ABSMCT: The photoelectric method of analysis is baved on the optical adti-
plication of a given function f0c) and alne-wave. oscillation. ~ In- the
simplest case the multiplication is. obtaint.4 by, superposing a photo-
graphic film on-the SMOUetje ofrthe given function (out out of
opaque paper). The blackening-gradations of this film var7 according to
a harmonic law. This film generally . fome a sinusoidal raster, perpen-
dicular to the. abscissa axis., inthe plane of the function being anal"ed..
The author examines the errors. arising in Ilie caser where the ran' ;;er is not
perpendicular to the abscissa axle, and consisting In a diminution of the
upper frequency boundary and in an irreversible distortion of the spectrum
under analysis.
-Card 1/1 N.O. QIechjk

iviiecuate obj4PUTOM In -rocootructlag freewWs. Gor.):hox.Xosk
34, ao-3:12A5 1609: 13: 8i
1. DirSktOr IMStltUt&:"MMl'aOMO 1DIAWC- XOIkWY-

CERVAMV, V.A. .
I Tvmm&A4m*~ ~164mbm*4wmm 4m wamom~tipnolk4uap fipm~amwm- (Lftip - b4sour - K"Ir -

STRAPONTOY9 A.Ye.,, pror., d6ktca~ t*kbn. mauk; Q=PANOV V.A.0
dotmento kand. tekhn. mank
Aremnliatlem or urban trafrie. Car. khot. Moak 35 no.102
161. WR& 1627)
(Citr trafria-commosell)

C,#F,fep*qoov, V-X.
USSR/Physics - Quantum optics
FD-1850

AIPANASIYXTA. L.A.; VDSWV. N*N.; CMMVANDY. V.I.
A am mthed, Operlphena lstersectlW . for optical coastast deterulustlos
la setaue Flsomt. I mtealeved. 1 w*3:5" 155. (KWA 9:6).
lAralldcly gosuAsneywan" UalVerellat IUMI AsNaGerlkog*,,
(MetaLP-optical properties) (Optima seasuresents)

CREPEPANOV, V. I.
Cberepanov, V. I.: 19nvestigati-on of the irwItielectron theory of the
Hi her Fduca-
optical properties of atorde Eekicondietom. 11 Min r
ISSR. Chernovtsy State U. Cheyno
tion L
vtsy, 1956. (Dissertation
for the Degree of Candidate in Physicomatbematical 'Science)
So: Knizbnays letopis' No 27, 1956. Moscow. Pages 9)j-109; 121

e- pq Ai,,~2
Category : USSR/Optics Physics.1 optles K-5-
Abs Jow : Rot Zbur Fizika. No 1, 1957 No 2303
Autbor : Aftmelyeva, L.A., It-nakov, N.M., C12erepazov,, V.I.
Ust ; Ural' State University., USSR ..........
Title. : New "intersecting-Circle" MetheA for the Deterainstion of the Optical Con-
stants of Metals
Crig Fab Piz. metallov i metallovedeaiye
1956, No -1, 566
Abstract DOscripticin of a variant of a method. of measuring the optical emstants Of
metals using the reflection of . polarizei infrared light. A recording mono-,
chrnmator is u6ed. to determine the' valuib of F (the ratio of the ability of the
speclued' to reflect light parallal to the plane of Incidence to the rotlecting
ability for the perpendicularl-y-pblarized light), at least for twojangus of
Incidence. Z-,'find the optical constatts, the authors'lTopose an,alproximate
jneth~d based on a' - xi)2 +
graphid solititior. of the system (X y2 Rf, ?Adch re-
mdta fiom the-Fresnel equations for awtal. Here
+
and is the Angle of incidence (1 1), 2). The-absdissas of the inb~rsictim
pAnts-ok two 61rcle-i -Kith iidii'k '4al -% _~iild'the ii.U i6f the Ind6i of
0 - U
r'fr-Uoh n--and'the ordinates yield'the absorption c66f;ic1&t'k. 'rac'method
was tested wi th Bi I
Sb, and their allciys in the range of A'fr'c* 2 to 1" -

X
AUTHORS: Vonsovskiy, S.V., Cherepanov, V.I. and Galis v S.
1921 3.0
TITLE: On the theory of exciton absorption of light (1-teorii
eksitonnogo pogloshcheniya sveta).
PERIODICAL: "Fizika Metallov i Metall.ovedeniye" (Physics of Metals
and Metallurgy), Vol.IV, No,2, 1957, pp.205-211 (U.S.S.R.)
ABSTRACT: The theory of Frenkel as generalised by Galishev and
Vonsovskiy (1) is applied to the investigation of the
mechanism of the absorption of light in crystals. The
probability is calculated of a quantum transition of a
system of electrons from a ground state to an excited
state under the action of light. It is shown that the
optical properties of such a system at absolute zero of
temperature are not fully analogous to the properties of
a system of isolated atoms. In the cases where exchange
effects and pair processes of excitation can be neglected,
the present theory reduces to Frenkel's theory.
In accordance with refs. 1 and 6, a crystal lattice with
"frozen" positive ions is considered in which non-
Card 1/3 uniformities in electron density are absent, and each
crystal node has a valency electron over the closed shells.
It is assumed that each su3h electron can be either in a
ground state or in an excited state. Spin characteristics

On the theory of exciton absorption of light. (Copt.)
1~6-2-Y,30
of electrons are not considered and the excite( tates
under consideration are taken to be non-degenerate.
The probability of transition of the system from a no:?mal
to an excited state 1's shown to be given by
P-0 (t) 2rrW t (I
h
where ~4(t) is the probability of absorption of a quantum
h~ in time t, -4, = (El - EC)/h is the transition of
frequency, and W is giver. by (cf. Frenkel: Wave
Mechanics, Pt.II)o
~N ei
W - _ (Ao. I
0 11C 0'l a(O)
card 2/3 The spectral coefficient of absorption of light is shown
to be given by (cf. Seitz, ~, Ref.2):
Ita(l) = 21ye 2n ---> --1' 2
Tim C ~L2ch -4 (n0101 ) a(0) a (-~l
There are 8 references, 6 of which are Slavic.

On the theory of exciton absorption of light. (Cont.)
1a6-2-3/30
SUBMITTED- October 30, 1956.
ASSOCIATION: Ural State University imeni A. M. Gorky;
Institute of Metal Physics, Ural Branch Ac.Sc., U.S.S.R.
(Ural'skiy Gosudarstvennyy Universitet imeni
A. M, Gor1kogo; Institut Fiziki Metallov Urallskogo
Filiala AN SSSR).
AVAILABLE:
'~-ard --:-!/3

AUTHOR: Cherepanov, V. I. 126.2-4/3o
TITLE: "-On-Ta-p~ossibility in principle of an "intrazonal"
mechanism of absorption of light in solid bodies.
(0 printsipiallnoy vozmozhnosti llv:autrizonnogoll
7,iekhanizma pogloshcheniya sveta v tverdykh telakh)
PMIODICk~'J: "Fizika Metallov i Metallovedeniye'~_, (Physics of
E'etals and Metallurgy), Vc;l.IV, No.2, 1 57, pp.212-215.
ABSTRAC,11:Absorption of visible and ultra-violet light; in solids
is due mainly to quantum transitions which take place
in the electron system Pf the crystal under the effect
of illumination disturb&n(.es. In the one electron
zonal theory these transitions are considered as
t'ransitions of individual electrons from one energy
band into another one wit.aout taking into account
interaction between the electrons,or such interaction
is taken into consideration by introducing a "Belf-
coordinated" field. Ginzburg, V.L. (1) justifies the
application of the single electron zonal theory of metals
by the assumption that ir- metals the electron gas is
card 1/4 highly degenerated and, therefore, a slight external
effect could not change the state of the major part of
the electrons. Considering the interaction between the

On a possibility in principle of an "intrazonal"
mechanism of absorption of light in solid bcjij%,~Cont.)
electrons of the metal as a collision of the individual
particles, Ginzburg and Silin (2) have stated that
consideration of these collisions is not important.
It is stated in this paper that this is correct only
if there is weak interaction between the electrons;
if there is strong interaction between the electrons
it cannot be claimed a priori that the electron gas in
the metal will be degenerated. In addition, hLon-metallic
substances, for instance, in semi-conductors, the electron
gas may not be degenerated, at all. Even Ginzburg admits
that his conclusions relate only to the rarge of low
energies of the light quanta (long wave infra-red part
of the spectrum). Therefore, in the general case the
inter-electron interaction cannot be disregarded in
considering the optical properties of solids.and it is
,x1ti-electron theory which in
necessary-.to apply the mi
this case has certain interesting features. All quantum
transitions in a system cEua be sub-divided into the
Card 2/4 following two types: transition not related to a change
in the quantum number and tramition involving a change
in the quantum number. Transitions of the first type

On a possibility in principle of an "intrazonal"
mechanism of absorption of light in solid b&y,/- ~Cont.)
are analogous to those considered in the single electron
zonal theory and the success of the single electron
theory of optical properties of solids are apparently
due to the fact that the probability of transitions
of the second type is low compared with the probability
of transitions of the first type. Although in the
general case it is difficult to anticipatetheconsiderable
influence of the transitions of tile second type (since
these are masked by the much more likely transitions of
the first type), in certain cases their influence must be
taken into consideration. This is particularly the case
in the long wave range of the spectrum in which the energy
of the light quanta is inadequate for throwing over of
electrons from one energy band to the next. According to
the single electron zonal theory, no light absorption should
occur in this range of the spectrum, however, according to
the multi-electron theory, absorption of light in this
Card 3/4 range of the spectrum is possible due to "intrazonal"
transitions. It is known that in metals and semi-
conductors, for instance, Si and Ge, a certain increase in

On a possibility in principle of an "intrazonal"
mechanism of absorption of light in solid bodies. (Cont.)
126-2-4/30
the light absorption can be observed for this range above
the value determined by the single electron theory.
Samoylovich, A. G. has shown that "intrazonal" transitions
need not involve occurrence of photo-conductivity since
in such transitions the number of free chage carriers
does not change in the semi-conductor and only a re-
distribution of the quasi-impulses of the carriers takes
place; this feature may help to elucidate the photo-
electrically inactive absorption of light in semi-
conductors which is not adequately explained by the
exciton theory. F. V. Vonsovskiy contributed valuable
card 4/4 advice relating to the here described work. There are
nine references, seven of -.Pvhich are Slavic.
SUBMITTED: June 28, 1956.
.ASSOCIATION: Ural State Universit-y-imeni A. M. Gorky. (Urallskiy
Gosudarstvennyy Universitet- imeni A. M. Gor1kogo).
AVAILABLE:

AUTHORS: Cherepanov, V. I. and Galishev, V. S. 126-5-3-21/3;
,ri
IV'OW c ~ U
TITLE: y of Light Absorption and Dispersion
(K teorii eksitonnoy dispersii i pogloshcheniya sveta)
PERIODICAL: Fizika Metallov i Metallovedeniye, 195?, Vol 5, Nr 3,
pp 547-8 (USSR)
kBSTRACT: A short note extending some calculations using Frenkel
excitons; instead of perturbation theory plus second
quantization, density matrices are used. Light
scattering and dielectric permittivities e can then be
calculated at the same time. Eq.(l) gives the disDersion
formula for the conductivity a, eo.(2) the same for E
(symbolism not explained; see previous paper (Ref.1)).
Card, The formulae differ from Seitz's only in a frequency-
1/1 independent factor.
There are 5 references, all of which are Soviet.
ASSOCIATION: Urallskiy gosudarstvennyy universitet imeni
A. M. Gor1kogo (Ural State University imeni A. M.,,Gorlkiy)
SUM1ITTED: March 11, 1957
1. Light--Theory 2. Light.--Absorption 3. Light--Scattering

56 52/ 52
4.UTHOR SOKOLOV, A.V.S CHEREPANOV V.1.
YITLE A Correction Submitted to he-Papers on 'The Dispersion Formula* of
Quantum Optics of Metals in the Plural Electron Theory'
(Ispravioniya k rabotam IDisporsionnyyo formuly kv&ntevey optiki me-
tallev v mnegooletronnoy toorii. Russian)
PERIODICAL Zhurnal Eksperim. I Teorot. Fiziki, 1957, Vol -112, Ur 4, pp 949 - 950
(U.S.S.R.)
ABSTRACT In some preliminary papers, the authors of the paper under review de-
termined the dispersion formula* of quantum ODUCS of metals with and
without taking into account electron damping ior the infraredg the vi-
sible, and the ultraviolet regions of the sp*ctrwn. The paper under re-
view aims at correcting ihaccaracies contained in these previous papers,
and at determining the final and correct dispersion formulae for E
and C". Thus, for instance, a certain wave function is inconsequent for
the system of Interacting electrons in a crystal, because in this con-
text the total quasi-impulxa of.the system (a magnitude which is pre-
served) equals the sum of the quasl-impulsoB of the different electrons*
This, however, is only valid In rigid.computation for a system of ele-
trons that are not in interaction with each othero Then the paper un-
der review gives an improved -formula* for the wave function for the
system of electrons which-are in interaction with each other* This for-
card 1/2 mu-la is more accurate insofar as here the common quasi-impulse of the

K7--4-'i2/52
A Correction Submitted to the Papers on 'Tho Dispersion Fermulie "OF
quantum optics of Metal's in the Plural Electron Theory'
total system appears as a uniform characteristic of the system as a
whole. Finally, the paper under review lists the dispersion formulae
for F- and *~ which are obtained by using the correct wave functions.
(No reproduction).
ASSOCIATION Institute for Physics of Metals, Ural Branch, Academy of Science of
the USSR
PRESENTED BY
SUBMITTED 30 December 1956
AVAILABLE Library of Congress
Card 2/2

--H r
m
V,
56-1-15/56
AUTHORUs Vonsovskiy, S. V. , Cherepanov, V. I.
TITLEe Extension of the Bogolyubov-T;Tablikov Perturbational Method
to the Non-Steady Case (0bobshcheniye metoda teorii vozmu-
shcheniy Bogolyubova-Tyabliko,ta na nestatsionarnyy sluchay)
PERIODICALs Zhurnal EkBperimentalinoy i Tooretichaskoy Fiziki, 1958,
Vol. 34, Nr 1, pp. 97 - 105 (IJSSR)
ABSTRACTs In the present work the method by BoLrolyubov-Tyablikov is ex-
tended to the non-steady case of the alternatLng electromagne-
tic field of a light wave propagated in a crystal. The authors
first investigated a simple atomic cubic crystal with an
s-electron in the s-state in each node of the lattice. The
thermal oscillations of the ions of the lattice are neglected.
On this occasion the Hamilton'Lan of the system of the eleo-
trons of the crystal in an eloctromagnetic field in the repre-
sentation of the second quantization are given and discussed*
In the following chapter the definition and the properties
Card 1/3 of the operator of the projection on the L-space are discuss-

56-1-15/56
Extension of the Bogolyubov-Tyablikov Perturbational Method to the Non-
-Steady Case
ed. Then, the perturbational method by Bo-olyubov-Tyablikov
is extended to the non-steady case. The computations given
here hold for such light frequencies which disagree with
the fundamental frequencies of the system. The consideration
of damping makes possible the investigation of the general
case with any frequency of thei incident light which will be
demonstrated more precisely in a later paper. In the case of
the approximation investigated here the spectrum of absorp-
tion of light through the system of electrons of the crystal
is a discrete spectrum. This neans from the physical point
of view that the "pairs" and "holes" occurring due to the
action of light remain in the bound states and the absorp-
tion of light by the crystal ~-.s not photo-electrically ac-
tive. The last chapter treaten the determination of the "de-
formed" current operator. There are 5 references, all of
which are Slavic.
ASSOCIATIONt Ural State University, Sverdlovsk (Urallskiy gosudarstvennyy
universitet Sverdlovsk)
SUBMITTEDs June 26, 1957
Card 2/3

56-1-15/56
Extension of the Bo,-olyubov-Tyablikov Perturbational Method to the Non-
-Steady Case
AVAILABLE& Library of Congress
Card 3/3

4.7700 66249
AUTHOR: Cherepanov, V. I. SOV/181-1-7-5/21
TITLE: On the Theory of Optic Proper-ties of Electronic
Semiconductors in the Infra-Red Region of the Spectrum
PERIODICAl: Fizika tverdogo tela,j959,V0l1,1qr7, PP 1035-1043 (USSR)
ABSTRACT: The interaction of electromagnetic waves in the infra-red
region of a spectrum and the conduction electrons of an
electronic semiconductor is theoretically investigated on
the basis of the classic model of free electrons. The fund-
amental differential equation for the electric field strength
of an electromagnetic wave is deduced for the case, that the
skin effect in the semiconductor has a normal character.
A solution is given for this equation as well as for the
surface impedance. The common dispersion formulas for the
optical parameters of a non-degenerate electronic semi-
conductor with arbitrary time dependence of the free path T
on the electronic velocity v are deduced. The formulas for
the homopolar semiconductors are represented in explicit
f orm with 'V - 1.v-l . The results are compared with tbA
Card 1/2 classic theory for metals (Drude-Einer-Kronig) and satis-

66249
On the Theory of Optic Properties of Electronic SOV/181-1-7-5/21
Semiconductors in the Infra-Red Region of the Spectrum
ASSOCIATION:
SUBMITTED:
factory agreement is found. The study by Tolpygo is
especially mentioned. There tre 20 references, 9 of
which are Soviet.
Urallskiy gosudarstvennyy universitet im. A. M. Gorlkogo
(Uralsstate University imeni A. M. Gor'kiy)
January 14, 1959
Card 2/2

GALISHEV, V.S.; CTIEREPANOV, V.I.; RADCHENKOP R.V.
Rules of selection for quadrupolc exiton light absorption in
cubic crystals. Piz. tver. tela 3 no.2:484-491 F 161.
(MIRA .14:6)
1. Ural'skiy gosud-rst-venny universitet im. A. 11. Gorikogo i
Institut fiziki metallov AN SSSR.
(Exitons)
(Absorption of light)

CHEREPANOV) V.I.; GALISHEV, V.S.
Anisotropy of quadrupole exciton absorl-3tion of light in cubic crystals.
Fia.tver.tela 3 no.4:1085-1093 Ap 161. (MMA 14:4)
1. Ural'skiy gosudarstvennyy universitot imeni A.M.Gorlkogo i
Institut fiziki metallov AN SSSR.
(Excitons) (Crystals-Optical properties)

CHEREPANOV. V.I.
Effect of unilateral directed defonnation of a cubic crystal on
quadrupole exciton absorption of light. Fiz.tver,tela 3 no*5.,
1493-1500 MY 161. (MIRA 14:6)
1. Ural'skiy gosudarstvennyy universitat imeni A.M.Gorlkogo.
(Absorption of light) (Mislocations in crystals)
(Excitons)

7 7/1131,1/4 0 j
S/181/61/003/006/021/031
Bi02/B214
AUTHORSs Zhilich, A. G., Cnerepanov, V. I., and Kargapolov, Yu. A.
TITLE: Possible existence of magnetic dipole lines in the exciton
absorption spectrum
PERIODICALs Fizika tverdogo tela, v. 3, no. 61 1961, 1812 -.1614
TEXT: The present paper gives a theoretical investigation of the-possi-
bility of magnetic dipole exciton transitions in cubic crystals. It can
be shown that such transitions may appear on excitation of exciton,levels
by light if these levels show a pseudovecto,rial syFetry. An investiga-
tion is also made of the deoendence of the intensity of absorption,.on the
direction of propagation, on the nolarization of light in magnetic dipole
transitiors in deformed crystal's in the PrE:Sence of an external magnetic
field. V. 1. ChereDanov and V. S. Galishev (Refl: FTT,,III,
have shown before that by using the equatj~,)n of'motion ~p' -
j L
the equation for the matfix element of the exciton quadrul)oletrarisitions
sill
S I "f/ I O> ic '%~' 1)
fn 0, (-qr.,) (4j)0
Card 1/6 [J=1

S/181/61/003/006/021/051
Possible existence of ... B102/B214
can be broulht in the form
�.-I ~0, S q.~,T., 0) . (2)
S I If/ 1 0> 2e 2mv
Here ~ is tl-.e propa,~-ation vector of the exci-ton (same as that of light),
S is a set A' discrete quantum numbers characterizing the exciton_state,
is a unit vector in the direction of the polari2Ation of light, r 0 and
P radius vi:ctor ante momentum operator of the j-th electron, H the
Hamiltonian operatoi for a system consisting of n interacting electrons
in the crys;al, q the unIt vector in the d:irection Of Dropagation,of the.
light, Taj t symmet--ic quadrupole tensor, and t the operator of the total
angular momt!ntum of the electron system. The first term of (2) can be
considered -.o repre-.;ent the electric quadrupole and the second the magnet-
ic dipole. The sel:.~otion rules for the first term for a cubic crystal
(symmetry g~:oup 0 h) are established in Ref. 1 where it is shown that two
types of el3etric q-..adrupole exciton absorption lines may existi
A(r _,r' ) and B(r _q, ). To the type A- belongs for example, the 6125-A
1 25 1 12
line in the yellow oeries of the exciton absorption spectrum of Cu 0..
2
Card 2/6

S/181/61/003/G06/021/031
Possible existence of ... B102/B214
The second term of (2) was not deal' with in Ref. 1. This term signifiest
however, that one more type of iYeak"excIton ~.bsOrDtion lines - the mag-
netic dipole-lines can exist. This terri is .different from zero only,for
is an irreducible represtn-
transitions of the type (ri--, whore I
~15) 15
tation of the 0 group according to which the components of the pseudo-
h
vector k are transformed. Both terms of (2).~%n not vanish simultane-
ously. Analogously to Ref. 1 one Obtains
i~/j, jo> 1, Ai 12, (3) for the'square matrix element
2 2
where g' = e /4m.c
M, the matrix element oe the components of 1,
and p are indices describing the state of pola:7ization of the light Wave.
According to this, there is complete isotropy :7or this line in a cubic
crystal with respect to the direction Of DrODa~;ation as well as to the
state of polarization. From this DOInt. Of view the magnetic dipole lines
are analogous to the electric ones, but their intensity is smaller than
2 6
that of the latter by a factor (a/,Q /,J10_ . The effect of uniform
directed compression on ~he magnetic dipole linBs is now studi'ed.
Card 3/6

LQJ/181/61/003/006/021/031
Possible existence of... B102/ IB214
1) Compression along a symmetry axis of 4th orler: the-l'ine splits into
two components F" E + A.
15
E I O> 12 Coe 0, 1 12 g' I'sint 0, (4)
1 It --g~ A 12, 1