Contents
Crystallography Reports


Vol. 42, No. 2, 1997

Simultaneous English language translation of the journal is available from maik nauka / Interperiodica Publishing (Russia).
Distributed worldwide by the American Institute of Physics. Crystallography Reports ISSN 1063-7745.


Modified Peierls Mechanism of Dislocation Motion in a Random Field of Internal Microstresses

B. V. Petukhov p. 161 abstract

Electrooptical Activity of Mixed Molecular Crystals

S. A. Fedorov p. 169 abstract

Shape of the Acoustic Slowness Surface in a Section by a Symmetry Plane in Orthorhombic Crystals

A. L. Shuvalov p. 173 abstract

Extraordinary Waves in Media with Helical Structure

I. V. Semchenko, A. N. Serdyukov, and A. I. Samusenko p. 180 abstract

Effect of Charge-Carrier Drift on the Resonant Interaction
of Acoustic Waves and Rotating Electric Field in Piezoelectric Semiconductors

I. V. Semchenko and S. A. Khakhomov p. 184 abstract

On the Theory of Nonlinear Acoustic Effects in Layer Quasicrystals

O. A. Belyaev and V. A. Koptsik p. 188 abstract

Covariant Form of the Dispersion Equation for Surface Acoustic Waves in Symmetry Planes of Crystal

A. N. Furs p. 196 abstract

PROFIT Computer Program for Processing Powder Diffraction Data on an IBM PC
with a Graphic User Interface

V. V. Zhurov and S. A. Ivanov p. 202 abstract

Search for Structural Similarity and Symmetry Recognition in Modeling of Crystal Packings
in Fullerene C60

A. V. Dzyabchenko p. 207 abstract

Crystal Structure of the High-Temperature K3[Nb3O6(BO3)23] Phase Refined by the Rietveld Method

Petra Becker, Ladislav Bohaty, and Julius Schneider p. 213 abstract

Synthesis, Structure, and Electrophysical Characteristics of K0.84Na0.16TiOPO4 Single Crystals

D. Y. Lee, N. I. Sorokina, V. I. Voronkova, V. K. Yanovskii, I. A. Verin, and V. I. Simonov p. 218 abstract

Crystal Structure of Rb2Ba4O7

M. G. Krzhizhanovskaya, R. S. Bubnova, I. I. Bannova, and S. K. Filatov p. 226 abstract

Structure of a Nonstoichiometric Ba0.78Nd0.22F2.22 Crystal

L. F. Malakhova, E. A. Zhurova, B. A. Maksimov, B. P. Sobolev, and V. I. Simonov p. 232 abstract

Defect Structure of Na0.39Y0.61F2.22 Crystals

E. A. Zhurova, B. A. Maksimov, S. Hull, S. S. Wilson, B. P. Sobolev, and V. I. Simonov p. 238 abstract

Icosahedral Cationic Framework in the Structures of MR2F7 Fluorides

A. M. Golubev, B. A. Maksimov, and R. K. Rastsvetaeva p. 243 abstract

Molecular and Crystal Structure and Polymorphism
of 6,6'-Dihydro-2-(4-bromphenyl)-2-Methyl-5-phenyl-2H-pyrazolo[1,5-c]benz[e]-1,3-oxazine

O. V. Shishkin, N. V. Getmanskii, V. D. Orlov, and Yu. T. Struchkov p. 247 abstract

Molecular and Crystal Structure of N,N'-Dimethyl-5,6-diaminouracil

O. V. Shishkin, N. N. Kolos, and V. D. Orlov p. 253 abstract

Crystal Structure of 1,10-Diazonia-18-crown-6 Bis(dihydrogen phosphate) Dihydrate

A. N. Chekhlov p. 256 abstract

Electron Density Distribution in Lithiophosphatite Li3PO4: Crystallochemical Features
of Orthophosphates with Hexagonal Close Packing

O. V. Yakubovich and V. S. Urusov p. 261 abstract

Magneto–Optical Properties of Antiferromagnetic Ca–Mn–Ge Garnet: Symmetry Aspects

S. S. Girgel’ and L. P. Rakhunok p. 269 abstract

Temperature–Spectra–Pressure Diagram of the Isotropic State of (NH4)2BeF4 Crystals

N. A. Romanyuk, V. I. Stadnik, and V. Yu. Kurlyak p. 273 abstract

On the Effect of Reduction of Radiation Absorption with an Increase of the Layer Thickness
in Strongly Absorbing Periodic Media in the Vicinity of the Diffraction-Reflection Region

G. A. Vardanyan and A. A. Gevorgyan p. 276 abstract

Oblique Shear Vibrations in Quartz Rods

M. E. Bogush and P. G. Pozdnyakov p. 280 abstract

X-ray Diffuse Scattering by Microdefects in Nonstoichiometric InSb Single Crystals

V. T. Bublik and K. D. Shcherbachev p. 286 abstract

Microhardness and Fracture Toughness of the (001) Plane of Lithium Tetraborate Single Crystals

N. L. Sizova, V. A. Lomonov, and Yu. V. Pisarevskii p. 291 abstract

Annihilation and Creation of Defects in Nematic Liquid Crystals: Interaction
between Cylindrical-type Defects

T. V. Kushnareva, S. V. Kushnarev, and V. K. Pershin p. 294 abstract

Thermochromic Polymer Films Based on Chiral Nematic Mixtures

K. G. Dzhaparidze, Z. M. Elashvili, G. Sh. Chelidze, Ts. I. Zurabishchvili, Z. Ya. Vashakidze,
G. Sh. Petriashvili, S. P. Tavzarashvili, and K. G. Tevdorashvili
p. 300
abstract

X-ray Study of Amorphous Anodic Tungsten Oxides

A. L. Aleshina and L. A. Lugovskaya p. 303 abstract

Crystallization of Amorphous Fe84 – xWxB16 (x = 0–5)

A. A. Novakova and T. Yu. Kiseleva p. 310 abstract

Specific Features of Defect Generation in Si +-implanted Gallium Arsenide
under Rapid Photon Annealing

V. T. Bublik, S. B. Evgen’ev, A. A. Kalinin, M. G. Mil’vidskii, A. V. Nemirovskii, and V. B. Ufimtsev p. 319 abstract


Short Communications

Theory of Three-dimensional Reconstruction

Ya. A. Ilyushin p. 323 abstract

Birefringence and the Ferroelastic Transition in Li2Ge7O15

A. I. Fedoseev, I. G. Sinii, and M. D. Volnyanskii p. 325 abstract


Review

Role of Dislocations in High-Temperature Superlocalization of Plastic Deformation

G. V. Berezhkova and V. Sustek p. 327 abstract


Obituary

In Memory of Arne Magnéli

B. K. Vainshtein p. 342


Errata p. 343


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