SCIENTIFIC ABSTRACT GALKIN, A.A. - GALKIN, A.V.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000614110020-6
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: July 19, 2001
• Sequence Number: 20
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

24.7100,24-56oo 77013
gov/56-37-6-53/55
AUTHORS: Galkin, A. A..and Matyash, i. V.
TITLE: Structure of Solid Hydrogen
PERIODICAL: Zhurnal eksperimentallnoy i teoretichesicoy fiziki, 1959,
Vol 37, Nr 6, pp 1831-1832 (USSR)
ABSTRACT: Measurements were made of the nuclear magnetic resonaece
(n.m.r.) of mono- and polycrystalline, hydrogen at 4.2 K.
Samples were cylindrical in form and obtained under
various directions of thermal gradient relative to the
axis of the crystal. The width and the shape of lines
of monocrystals in the rotational diagrams was found to
be practically identical to those obtained with poly-
crystalline hydrogen. The diagrams exhibited no aniso-
tropy of the second momentum in the n.m.r. This served
as the confirmation that the crystalline hydrogen has
tetragonal lattice. There are 5 references; 4 Soviet,
Card 1/2 1 Dutch.

Structure of Solid Fydrogen
77013
sov/56-37-6-53/55
ASSOCIATION: Inst. Radiophys, and Electronic3 Acad. Sciences Ukrain.
SSR, USSR (Institut radiofi-.ilci i elektroniki Akademii
nauk Ukrainskoy SSR, SSSR)
SUBMITTED: October 13, 1959
Card 2/2
~ I.. ~ I I I .,.] : .

86749
S/l2o/6o/ooo/oo6/025/045
9041/Z521
AUTHORS- _Galki-n_A-A- and-Korolyuk, A.P.
TITLE-. Inst-rustezLt- for Studying - Ultrasonic Absorption by
Metals at Low Temperatures
PMODICAL: Pribory i.tekh-Jka eksparimonta, 1.960, No.6, pp-99-103
TEXT*. The greatest interest lies in the absorption by magnetic
materials under conditions where the mean free path of a conduction
electron is significantly greater than the wavelength of the sound
in the material, while the L&rmor radius of the electron in
comparable with the latter. The absorption coefficient varies
periodically with magnetic field strength and the period in a
measure of the electron impulse at the Fermi surface. The present
article describes a method of recording automatically the propagated
signal strength as a function of magnetic field in a series of
Oonocrystals. Fig.1 shows the block diagram of the experimental
arrangement. A pulse generator ;LGM (261) drives simultaneously a
modulator and a delay circuit. The modulator switches a high-
frequency generator connected by coaxial cable to the transmitting
crystal a. The crystal can be matched to the generator by varying
Card 1/4

8670
S/120/60/000/006/025/045
9041/2521
Instrument for Studying-Ultrasonic: Ab4porption- by Metals at Low
Temperatures - . . . I .. -
the cable length. The receiving cryital b is similarly joined to
the receiver whose output in gated in the pulse selector drive by
another generator 261 from the delay circuit. The selector output
is peak detected, the selection of the appropriate pulse being made
by varying the delay. The detected output goes to a recorder9r7n-09
(ZPP-09) which In a two-dimensional self-balancing potentiometer
plotter. The field strength is measured by a germanium Hall-effect
pick-off. Fig.2 is the circuit of the modulator and high-frequency
generator. The latter oscillates between 50 and 250 Mc/s. The
receiver is in two parts. The high-frequency part is an ordinary
television receiver front-.end working over the bands 50-100 and
160-239 Mc/s. Other frequencies are covered by heterodyning. The
intermediate frequency amplifier circuit is in Fig.4. The centre
frequ.en cy is 32 Mc/s, the bandwidth 3 Mc/s. amplification 105,
sensitivity between 5 and 10 microvolts. Fig.4 is the delay
circuit providing delays between 0 and 250 micreseca. Fig-5 is
the pulse-selecting gate. Fig.6 in a cross-section through the
I
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86749
S/l2o/6o/ooo/oo6/o25/o43
E041/E521
Instrument..for.Studying..Ultramontc.Absorption..by Metals at Low
Temperatures_.
crystal. Fig-7 shows how the sample is mounted. The sample may be
.rotated in the field. The magnet current is controlled from 0 to
8 amperes by the circuit of Fig.8. Fig.9 is an example of a record
taken on a monocry3tal of tin. The 'sound frequency was 220 Mc/s,
parallel to the (101) axis. :The H-vector lay in a perpendicular
plane and made an angle of-about 360 to the (100) axis. The two
curves each took 3-4 minutes in recording. Manual methods would
have taken 15-20 times as long. The overall error in measuring
either coordinate ..does -not..exceed a few percent. There are
9 figures and 8.-r-,eferences; 4 Soviet and It non-Soviet.
ASSOCIATION: Institut radiof�zik� I elektron�ki AN UkrSSR
(Institute of Radiophysics and Electronics, AS, UkrSSR)
SUBMITTED: October 13, 1959
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- GALKIN, A.A.; KOROLYUK, A.P.
Instrument for the studyof the absorption of ultrasonic wa-Ves b7
metals at low temperatures. Frib. i tekh. eksp. nG.6:99-103 N-D
16o. (MIRA 13:12)
1. Institut radiofiziki i elektroniki AN USSR.
(Ultrasonic waves) (Metals)

83745
S/056160/038/004/038/048
64oa B006/BO56
AUTHORS: _Gal. ~.A_, Matyash, I. V.
TITLE: Investigation of the Nuclear Resonance in an Adsorbed Gas
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki~ 1960,
Vol- 38, No- 4, PP. 1332 - 1334
TEXT: For the purpose of investigating the properties of adsorbed gases,
nuclear paramagnetic resonance offers suitable means, because conclu-
sions may be drawn from the shape of the resonance curves as to-the'
interaction of the adsorbed molecules and the effect of the backing. in
the present "LetterId'ttie Editor", the authors describe investigations
carried out by the spixf-:echo method, of nuclear paramagnetic resonance
on thin layers of hydrogen, water, and methane adsorbed on activated
carbon. The block diagram of the apparatus used is shown in Pig. 1, and
is briefly described in the introduction. The magnetic field (3300 oe)
was generated by a permanent magnet with a pole-piece diameter of 110 mm
and a gap'width of 40 mm. The apparatus permitted measurement of the
longitudinal and transverse relaxation times (T, and T2) within the
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83745
Investigation of the Nuclear Resonance in an S/056/60/038/004/038/048
Ldsorbed Gas Boo6/BO56
range from 10-4 to 10 see. To determine T1, three pulses were applied to
the sample, and by analyzing the signal intensity of the stimulated echo
as a function of the time between the first and the third pulse., the
relaxation time was determined* Investigation of the spin-echo signal
intensity as a function of the time between two pulses also made it pos-
sible to calculate T2 and the self-diffusion coefficient (the exp.eriment-
al method is described in Ref- 5). Fig. 2 shows such a spin-echo oscillo-
gram from which T2 was determined for hydrogen adsorbed on carbon at
770K. The Ti and T2 values thus determined as well as estimates of the L~
self-diffusion coefficient (D) are given in a table for the layers in-
vestigated here. Also the activation energies (Q) were estimated and
are also given, as well as the measured resonance-line widths AH. Thus,
AH for a monomolecular H2 layer at 770K equals 0.2 oe) and at 20-40K it
equals 2 oe. For these two temperatures, T1 was measured as amounting
to 5.10- and 10.10-3 see, respectively, and T 2 as 1.3*10-3 and
Card 2/3

83745
Investigation of the Nuclear Resonance in an S/056/60/038/004/056/048
Ldsorbed Gas Boo6/BO56
0.1*10-3 sec, respectively; D z2-4'10_ 2 CM2/s ec and Q~:6590 joules/mole.
There are 2 figures, 1 table, and 6 non-Soviet references.
ASSOCIATION; Institut radiofiziki i elektroniki Akademii nauk Ukrain-
skoy SSR (Institute of Radiaphysics and Electronics of
the Academ-y of Sciences Ukrainakaya 52W
SUBMITTED: December 19, 1959
1x/
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85675
3/05 6/60/03 8/00 6/017/049/XX
B006/BO7O
/goo
AUTHORS: Galkin, A.. A,, Korolyuk, A. F
TITLE: Absorktion of Ultrasonicsin Zinc at Low Temperatures
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki.,
1960, Vol~ 38, No~ 6, pp, 1688 - 1694
TEXT: The oscillation of the ultrasonic absorption coefficient a
with a change in the magnetic field has been studied several times in
the past; the theory of this effect is due to V, L., Gurevich, Also
two of the earlier papers of the present authors (Refs. 1, 2) were
concerned with problems of the same nature.. Now, the behavilor of a
in a strong magnetic field is studied for the case when 11,k) r
(1 - mean free path of the electrons; r-cp/eH is the Larmor radius;
X- ultrasonic wavelength). The behavior of a is essentially related
to the asymptotic behavior of the electrical conductivity tensor.
A theoretical study of this was made by Gurevich and E, A. Kaner
(Refs. 9, 8) who showed that data on the topology of the Fermi surface
Card 1/5

8 ','0' 7 5
Absorption of Ultrasonics in Zinc S/056/60/058/006j'017/049/XX
at Low Temperatures B006/BO70
can be obtained by studying the anisotropy of a in a magnetic field..
The experiments described here were carried out on single crystals of
zinc by the method of Obreimov-Shubnikov, The metal was 99,9998% pure,
and had a resistivity ratio R 4-.2 /R 300- 2.10-4, The techniques of
preparing the specimens, of producing the ultrasonic waves (0,o, 100~
180, and 220 hie/sec), and of the measurement are described J.n the
introduction., The periods of oscillation of a were measured for different
orientations of H which could be rotated in a plane perpendicular t-
Fig. 1 shows one of these oscillation curves at 220 Me/sec, Fig.. 2
shows the number of oscillations as a function of 1/H for d4 fferent
directions of 0 in the (10T0) plane. In Fig. 3., a, b. and c show the
angular dependence of the extreme diameters of the Fermi surface
(perpendicular to t) on rotation of A end the planes (11~0)., (0001),
and (10i0), respectively.. Fig 4 shows the de endence of the difference
of a-values w-th and without a field (7000 0e5 on the direction of
k ~ f~OO~j ; b: k 11 F-~OfOj; c. k I( _11~0]c. T-4 20K; 60 I[Vsec.
'-(Ref* U
According to the theory . 6), a change in the diameter of the
electron orbit in relation to ; corresponds to each oscillation of a
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Absorption of Ultrasonics -in Zinc
at Low TemDeratures
6 56 75
3/056/60/038/006/017/049/XX
B0006/B070
in the magnetic field. The relation (n4-.) holds for the mean free
path of electrons in a weak field. Another pcssibility of determining
1 is to measure the component of the electron momentum perpendicular
to I and ~ (P,), and the minimum field in which oscillations appear
(pL/r max. eHm-J n/c) The following path lengths were determined by
these methods:
-4
k direction Path length [mm] Temperature
according to the according to FOK
number of oscillations p
-1.
[00011 0-~ 5
[.0101 0,22
[11 2'CLI 0.27
o,6 -.65
0,2 4,2
0.24 ! 65
Thus, the electron path length also shows anisotropy, The results
are discussed in the conclusion,, The values obtained for the extreme
diameters of the Fermi surface show that the law of dispersion of
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85675
Absorption of Ultrasonics in Zinc
at Low Temperatures
S/05 60/038/006/017/049/XX
B006YB070
electron energy deviates largely from the quadratic form. It is con-
cluded from the anisotropy of a in a strong field that the Fermi
surface of zinc is an open surface of the sixth order in the direction
of the symmetry axis. E. A. Kaner and M. I. Kaganov are thanked for
discussions,and V.. I, Bogatov for supplying liquid helium, "here are
4 figures., 1 table, and !I references: 7 Soviet- 3 US. and I British
ASSOCIATION: Institut radiofiziki i elektroniki kkademii nauk
Ukrainskoy SSR
(Institute of Radiophysics and Electronics of the
Academy of Sciences Ukrainskay.~,SSR)
SUBMITTED: January 10, !960
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825'94
r) 9 00 S/05"60/039/01/01/021
B006~BO70
AUTHORS: Bezuglyy, P. A., Galkin, A. A., Korolyuk, A. P.
TITLE: Investigation of the Anisotropy of the Energy Gap in
superconducting Tin
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki, 1060,
Vol. 39, No- 1 (7), PP. 7-12
TEXT: The authors investigated the temperature dependence of the
ultrasonic absorption coefficient in different directions of single
crystals of superconducting tin. They describe the methods of investi-
gation and present the results. The method of energy gap investigatioL
is based on the determination of the difference between the curves
a3/(X n =f(T) when.the ultrasonics is propagated along a binary (C 2) and
a tetragonal crystal axis. Prom this difference the anisotropy of the
energy gap may be determined. a 8 and ofnare the electronic ultrasonic
absorption coefficients in the superconducting and the normal state
respectively. They are related to the width 2 E 0 of the energy gap by
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82594
Investigation of the Anisotropy of the Energy S/056/60/039/'Oi/01/029
Gap in Superconducting Tin B006/BO7O
the relation aes/oL n '2/(e Eo/kT + 1). To investigate the influence of the
lattice anisotropy on the energy spectrum of electrons in a semiconduc-
tor, the temperature dependence and absorption coefficients of longi-
tudinal supersonics was investigated by means of an apparatus described
here in detail. Fig. 1 shows a block diagram of the measuring device.
The generator works at 70 Me/see, the quartz emitter receiv s
2500-3000 pulses per second for a duration of (I -'. I .5)'10-9 see. A small
sphere of single crystals of tin was used as a sample. It had a diameter
of 13-15 mm, and on it, cut surfaces of 5-6 mm diameter perpendicular
to the crystallographic axes were produced by electrocorrosion. Onto
these surfaces quartz emitters and receivers were cemented in vacuum
and on them small plates of brass of 5-6 mm diameter and a thickness of
0.2-0.3 mm. For very pure crystals of tin the condition that the mean
free path of the electrons be large in comparison to the ultrasonic
wavelength was very well fulfilled at helium temperature. The temperature
dependence of ultrasonic absorption coefficients was measured simultane-
ously in two different directions at temperatures down to 10K. Fig. 2
shows the Dewar for helium in which the measurements were carried out.
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82594
Investigation of the Anisotropy of the Energy S105616010391011011029
Gap in Superconducting Tin B006/BO70
The temperature of the sample was determined from the saturation vapor
pressure of helium. The results are shown in diagrams. Fig. 3 shows 41
Vs/'~n between 10 and 40K taken along two mutually perpendicular C2 axes.
The measured values (full and empty circles) all lie on one line which
shows that the physical properties are the same in the two directions.
Fig. 4 shows the same for C2 and C4 axes. Here the anisotropy of the
energy gap is clearly seen. Measurements made on two samples gave uniform
results. For the absolute ralue of the electronic part of the ultrasonic
absorption coefficients in the normal state in the neighborhood of T 09
the followirig results are obtainedt(X n ' (47.6 + 0.2) decibel/cm -(C 2)'
and qn - (21-4 1 0.2) decibel/am -(C 4). Fig. 5 shows log(vs/ccn ) - f(T c/T).
From the slope of the straight line portion of the curveg the energy gap
width at absolute zero may be determined to be (3-5 � 0.2)kT a for the
C2-axis and (3.1 + 0.1) kT c for the C4- axis. Besides the anisotropy in
the temperature dependence of the absorption coefficients, an anisotropy
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82594
Investigation of the Anisotropy of the Energy 5/05 60/030/01/01/029
Gap in Superconducting Tin B006YB070
of the transition temperature T. is also established. For the C2-axis Tc
lies about 0.0040K higher than for the C -axis. The authors thank
A. I. Berdovski and E. I. Ponomarenko fir cooperation in the measurements
and V. L. Karpachevskiy and B. N. Aleksandrov for help in the preparation
of the sample. There are 5 figures and 13 references: 5 Soviet,
6 American, 1 British, and 1 Dutch.
ASSOCIATION; Fiziko-tekhnicheskiy institut Akademii nauk Ukrainskoy SSR
(Physicotechnical Institute of the Academy of Sciences of
the Ukrainskaya SSR)
SUBMITTEDi January 12, 1960
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BIEUGLYY, P.A.& GALKIN. A.A.
Anisotropy of the energy alit in tin in the plane of the binary
axes of a crystal. Zhur. ekep. i teor. fiz. 39 no.4:3263-1164
o 16o. (MTRA 13:11)
(Tin crystals)

86423
S/056/60/039/006/007/063
g4-.770o Boo6/BO56
AUTHORS: Galkin, A. A., Kaner, E. A., Korolyuk, A. P.
TITLE; Investigation of Ultrasonic Absorption by Metals in a
Magnetic Field
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheakoy fiziki, 1960,
Vol. 39, No. 6(12), pp. 1517-1528
The characteristics of ultrasonic absorption in metals at low tem-
TEXT:
peratures under conditions at which the mean free path 1 of the electrons
is very large with respect to the acoustic wavelength I have already re-
peatedly been investigated both theoretically and experimentally, above
all the periodic change in the ultrasonic absorption coefficient a as a fuv-
tion of H-1. The first theoretical calculations are by Fermi and V. L.
Gurevich. In the present paper, the theoretical and ex-perimental results
are given, and compared for tin and indium. First, the magnetoacoustic
resonance and the oscillation of a are investigated for a strong magnetic
field, as well as the conditions wave vector) and X