Contents

JETP Letters

Vol. 109, No. 6, 2019

Fields, Particles, and Nuclei

Photoionization of Endohedrals with Account of Fullerenes Polarization

M. Ya. Amusia and L. V. Chernysheva p. 347  abstract

Spectroscopic Study of the Hyperfine Structure of Levels of Impurity Ho3+ Ions in Synthetic Forsterite

E. P. Chukalina, I. O. Tyurenkov, E. V. Zharikov, K. A. Subbotin and M. N. Popova p. 352  abstract

Dimuon Resonance Near 28 GeV and the Muon Anomaly

S. I. Godunov, V. A. Novikov, M. I. Vysotsky and E. V. Zhemchugov p. 358  abstract

Astrophysics and Cosmology

Tetrads and q-Theory

F. R. Klinkhamer and G. E. Volovik p. 364  abstract

Optics and Laser Physics

Vibrational and Light-Emitting Properties of Si/Si1 – xSnx Heterostructures

V. A. Volodin, V. A. Timofeev, A. I. Nikiforov, M. Stoffel, H. Rinnert and M. Vergnat p. 368  abstract

Phonon-Assisted Exciton Absorption in CdSe/CdS Colloidal Nanoplatelets

A. M. Smirnov, A. D. Golinskaya, B. M. Saidzhonov, R. B. Vasiliev, V. N. Mantsevich and V. S. Dneprovskii p. 372  abstract

Effect of Strongly Mismatched GaAs and InAs Inserts in a InAlAs Buffer Layer on the Structural and Optical Properties of Metamorphic InAs(Sb)/InGaAs/InAlAs/GaAs Quantum-Confined Heterostructures

V. A. Solov’ev, M. Yu. Chernov, O. S. Komkov, D. D. Firsov, A. A. Sitnikova and S. V. Ivanov p. 377  abstract

Plasmon-Enhanced Two-Photon Absorption of Infrared Femtosecond Laser Pulses in Thin Gold Films

S. I. Kudryashov, P. A. Danilov, S. G. Bezhanov, A. A. Rudenko, A. A. Ionin, S. A. Uryupin, S. F. Umanskaya and N. A. Smirnov p. 382  abstract

Condensed Matter

Interplay between the Coulomb Interaction and Hybridization in Ca and Anomalous Pressure Dependence of the Resistivity

D. Y. Novoselov, D. M. Korotin, A. O. Shorikov, A. R. Oganov and V. I. Anisimov p. 387  abstract

Effects of Resonant Enhancement of Evanescent Spin Waves in Exchange-Coupled Layered Magnetic Structures with and without an Inversion Center

S. V. Tarasenko and V. G. Shavrov p. 392  abstract

Beats of Quantum Oscillations of the Resistance in Two-Subband Electron Systems in Tilted Magnetic Fields

A. A. Bykov, I. S. Strygin, A. V. Goran, I. V. Marchishin, D. V. Nomokonov, A. K. Bakarov, S. Abedi and S. A. Vitkalov p. 400  abstract

Transition in a Magnetic Non-Collinear Spin-Flop State in a Fe/Pd/Gd/Pd Superlattice

N. O. Antropov, Yu. N. Khaydukov, E. A. Kravtsov, M. V. Makarova, V. V. Progliado and V. V. Ustinov p. 406  abstract

“Tubular” Lanthanum Hydride: A New Class of High-Temperature Superconducting Materials

N. N. Degtyarenko, K. S. Grishakov and E. A. Mazur p. 410  abstract

Ising-XY Transition in Three-dimensional Frustrated Antiferromagnets with Collinear Spin Ordering

A. O. Sorokin p. 419  abstract