Journal of Experimental and Theoretical Physics

Journal of Experimental and Theoretical Physics

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JETP, Vol. 70, No. 2, February 1990
(Russian original - ZhETF, Vol. 97, No. 2 , February 1990)

GRAVITATION, ASTROPHYSICS

Novel effects in the scattering of charged particles by a cosmic string

Ya. I. Kogan, K.G. Selivanov

217

NUCLEI, PARTICLES, AND THEIR INTERACTION

Acceleration of the decay of ^235mU by laser-induced resonant internal conversion

B.A. Zon, F.F. Karpeshin

224

Mean-field method and phase diagram for a scalar-fermion theory on a lattice

M.A. Stefanov, M.M. Tsypin

228

Partition function of a chromoelectric hadron string

G.S. lroshnikov

236

ATOMS, SPECTRA, RADIATION

Perturbation theory for intercenter electron exchange and superexchange with degeneracy

E.V. Orlenko, A.A. Rumyantsev

244

Propagation of femtosecond solitons in single-mode fibers

A.B. Grudinin, V.N. Men'shov, T.N. Fursa

249

A mechanism for exciting oscillations of Rydberg level widths of alkali-metal atoms

V.M. Borodin, A.K. Kazanskii

252

PLASMA, GASES

Possible formation of a toroidal current layer during a spark discharge

259

LIQUIDS

Two-dimensional turbulent diffusion

A.V. Gruzinov, M.B. Isichenko, Ya. L. Kalda

263

SOLIDS

Electron acceleration, effective masses, and sum rule in the polar model

M.S. Svirskii, L.M. Svirskaya

270

Theory of spontaneous and stimulated emission of radiation by local plasmons on a surface with regularly distributed microirregularities

277

Phase transitions stimulated by impurities in superconductors with a multicomponent order parameter

284

Long-term kinetics of the activation spectra of postirradiation relaxation of glasses

A.I. Gusarov, A.V. Dmitryuk, A.N. Kononov, V.A. Mashkov

289

Equation of state and sound speed of cesium at temperatures up to 2200 K and pressures up to 60 MPa

V.F. Kozhevnikov

298

Photoinduced increase in the magnetization in the region of a phase transition in the ferromagnetic semiconductors CdCr₂Se₄ and HgCr₂Se₄

V.G. Veselago, G.I. Vinogradova, A.A. Garmonov, S.G. Rudov, E.G. Zhukov, I. Kurbanklychev, V.A. Levshin

311

Effect of temperature on the propagation of surface electromagnetic waves in a YBa₂Cu₃O_7-δ film

E.V. Alieva, G.N. Zhizhin, L.A. Kuzin, E.V. Pechen', E.I. Firsov, V.A. Yakovlev

315

An experimental study of the spectrum of spin waves localized on a Bloch line

L.M. Dedukh, Yu. P. Kabanov, V.I. Nikitenko

317

Positron diagnostics of phase transitions in a system formed by SiC, nitrogen, and vacancy defects

A.I. Girka, A.D. Mokrushin, E.N. Mokhov, V.M. Osadchiev, S.V. Svirida, A.V. Shishkin

322

Electromagnetic generation of spikes of anomalous sound in metals in a magnetic field

I.E. Aronov, V.L. Fal'ko

329

Aharonov-Bohm effect in insulators with a charge-density wave

E.N. Bogachek, I.V. Krive, I.O. Kulik, A.S. Rozhavskii

336

Mutual charging of small metallic particles

P.G. Borziak, S.A. Gorban, L.K. Grigorieva, E.L. Nagaev, S.A. Nepiiko, S.P. Chizhik

347

Parametric excitation of spin waves by spatially localized pumping of tangentially magnetized yttrium iron garnet films

P.E. Zil'berman, N.S. Golubev, A.G. Temiryazev

353

Polariton luminescence of mixed modes in crystals with spatial dispersion

A.G. Abukadyrov, M.I. Sazhin, A.V. Sel'kin, N. Kh. Yuldashev

359

Appearance of a saddle point in the energy spectrum of Bi_1-xSb_x alloys

S. Sh. Akhmedov, R. Herrmann, K.N. Kashirin, A. Krapf, V. Kraak, Ya. G. Ponomarev, M.V. Subakova

370

Bose condensation of finite-lifetime particles with excitons as an example

380

Antiferromagnets with frustrated intrasublattice interaction in a magnetic field

I. Ya. Korenblit, Ya. V. Fedorov, E.F. Shender

388

Effective refractive index of media experiencing a percolation-type phase transition

A.L. Korzhenevskii, A.A. Luzhkov

395

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