Journal of Experimental and Theoretical Physics 





JETP, Vol. 60, No. 3, September 1984
(Russian original  ZhETF,
Vol. 87,
No. 3
, September 1984)
GRAVITATION, ASTROPHYSICS 
Quantum dynamics of an isotropic cosmological model

403

NUCLEI, PARTICLES, AND THEIR INTERACTION 
Multiple Coulomb scattering of ultrarelativistic charged particles moving at small to crystallographic planes

409

Freefree transitions of electrons in the presence of an electric field

412

Selfdefocusing of converging laser beams

417

Correlation rules for diabatic molecular orbitals in diatomic quasimolecules

423

Zeeman effect in the phosphorescence spectra of complex molecules in disordered media under selective excitation

428

Stochastic instability of rays and the speckle structure of the field in inhomogeneous media

435

Nonconservation of parity in atomic bismuth

442

Damping and fluctuations in coupled quantum oscillator systems

450

PLASMA, GASES 
Experimental observation of the structure of gaskinetic magnetic resonance

458

Effect of a finite Larmor radius on the equilibrium of plasmas

461

Modulation instability in a relativistic isotropic plasma

467

Electrical conductivity of adiabatically compressed alkali metal vapor

473

Onedimensional gasdynamic simulation of electronbeam transport in a rarefied gas

478

LIQUIDS 
Optical properties of homotropically oriented nematiccrystal elliptically deformed nematic crystal layer

483

Undamped oscillations of NLC director in the field of an ordinary light wave

488

Phononkinetics changes due to the dispersion law and to impurities

491

SOLIDS 
Anisotropy of multiple scattering in axial channeling of negative particles

498

Theory of oscillations of the impedance of a metal plate in the case of diffuse reflection of carriers

502

Analytic expression for the cross section for twophonon resonant Raman scattering of light

510

Behavior of magnetic superconductors in a magnetic field

515

γ carbon

520

Direct experimental observation of electron waves excited by a sound wave in a semiconductor in an alternating electric field

523

Pressure selfmultiplication effect in a phase transition under quasihydrostatic conditions

525

Quantum models of a crystal surface

528

Measurement of the temperature dependence of the shear modulus of solid ^{4}He

537

Identification of neutral and ionized tin donor states and the observation of twoelectron exchange between tin centers in solid solutions based on PbS and PbSe

542

Heisenberg magnetic substances with competing interactions

547

Quantum effects in percolation systems. Granular Cu_{1x}O_{x} films

554

Spin reorientation in dysprosium yttrium iron garnets Dy_{x}Y_{3x}Fe_{5}O_{12}

564

Shape of NMRspectra of solids
A.A. Lundin, A. V. Makarenko
577 (1010) Anisotropic spinlattice relaxation of selftrapped G. G. LiI'd'ya, T.A. Soovik, A. L.
holes in KBr Stolovich
582 (1019) Induction of intermediate ordered phases in Yu. M. lvanchenko, A. A.
Heisenberg magnets by fluctuational exchange Lisyanskil', A. E. Filippov
inversion
587 (1028) Striction effects and dynamics of the magnetic V. G. Bar'yakhtar, I. M.
subsystem in spinreorientation phase transitions. Vitebskil', Yu. G. Pashkevich, Symmetry aspects V. L. Sobolev, V. V.
Tarasenko
593 (1038) Magnetically induced birefringence in cubic O. V. Gogolin, V.A. Tsvetkov, crystals E. G. Tsitsishvili
598 (1046) Introduction of spatial dispersion into the S. I. Pekar, B. E. Tsekvava
dielectric constant of a crystal in the spectral
region of accidentally close exciton resonances
605 (1058) Stochastic spin dynamics of superfluid 3He V. I. Kesaev, A. I. Ugulava
608 (1064) Effect of dynamic character of image forces on A. I. Voltenko, A.M. Gabovich, field emission V. M. Rozenbaum
611 (1069) Critical dynamics of uniaxial displacive V.V.Lebedev
ferroelectrics
618 (1080) Melting as a phase transition into a space with v. N. Novikov
A. A. Lundin, A.V. Makarenko


570

Anisotropic spinlattice relaxation of selftrapped holes in KBr

577

Induction of intermediate ordered phases in Heisenberg magnets by fluctuational exchange inversion

582

Striction effects and dynamics of the magnetic subsystem in spinreorientation phase transitions. Symmetry aspects

587

Magnetically induced birefringence in cubic crystals

593

Introduction of spatial dispersion into the dielectric constant of a crystal in the spectral region of accidentally close exciton resonances

598

Stochastic spin dynamics of superfluid ^{3}He

605

Effect of dynamic character of image forces on field emission

608

Critical dynamics of uniaxial displacive ferroelectrics

611

Melting as a phase transition into a space with constant curvature

618

An exact solution to the equations of the phenomenological theory of the incommensurate phase

624




