Vol. 109, No. 4, 2019

JETP Letters

Fields, Particles, and Nuclei

First Observation of the Oscillation Effect in the Neutrino-4 Experiment on the Search for the Sterile Neutrino

A. P. Serebrov, V. G. Ivochkin, R. M. Samoilov, A. K. Fomin, A. O. Polyushkin, V. G. Zinoviev, P. V. Neustroev, V. L. Golovtsov, A. V. Chernyj, O. M. Zherebtsov, M. E. Chaikovskii, V. P. Martemyanov, V. G. Tarasenkov, V. I. Aleshin, A. L. Petelin, A. L. Izhutov, A. A. Tuzov, S. A. Sazontov, M. O. Gromov, V. V. Afanasiev, M. E. Zaytsev, A. A. Gerasimov and D. K. Ryazanov p. 213 abstract

On the Dependence of the Widths of the τ → [ρ⁰(770), ρ⁰(1450)] π^–ν_τ Decays on the Parameters of the Intermediate a₁ Meson

M. K. Volkov and A. A. Pivovarov p. 222 abstract

Astrophysics and Cosmology

Carpet-2 Search for PeV Gamma Rays Associated with IceCube High-Energy Neutrino Events

D. D. Dzhappuev, I. M. Dzaparova, E. A. Gorbacheva, I. S. Karpikov, M. M. Khadzhiev, N. F. Klimenko, A. U. Kudzhaev, A. N. Kurenya, A. S. Lidvansky, O. I. Mikhailova, V. B. Petkov, K. V. Ptitsyna, V. S. Romanenko, G. I. Rubtsov, S. V. Troitsky, A. F. Yanin and Ya. V. Zhezher p. 226 abstract

Optics and Laser Physics

Magnetically and Electrically Controlled Microwave Interference Pattern in a Meta-Interferometer

G. A. Kraftmakher, V. S. Butylkin, Yu. N. Kazantsev and V. P. Mal’tsev p. 232 abstract

Plasma, Hydro- and Gas Dynamics

Folding in Two-Dimensional Hydrodynamic Turbulence

E. A. Kuznetsov and E. V. Sereshchenko p. 239 abstract

Nonlocal Turbophoresis of Particles in the Logarithmic Layer of Wall Turbulence

D. Ph. Sikovsky p. 243 abstract

Condensed Matter

On the Theory of the Electric Polarization in FeСr₂O₄ Ferrimagnet

M. V. Eremin p. 249 abstract

Ferromagnetic Nanoregions in Cubic Sr_0.98La_0.02MnO₃ Manganite According to ¹³⁹La NMR Data

A. Yu. Germov, K. N. Mikhalev, Z. N. Volkova, A. P. Gerashchenko, E. I. Konstantinova and I. A. Leonidov p. 252 abstract

Relaxation of Coherent Excited States of a Superconductor to a Superconducting Reservoir

I. A. Devyatov and A. V. Semenov p. 256 abstract

On-Chip Piezoelectric Actuation of Nanomechanical Resonators Containing a Two-Dimensional Electron Gas

A. A. Shevyrin, A. K. Bakarov, A. A. Shklyaev, A. S. Arakcheev, M. Kurosu, H. Yamaguchi and A. G. Pogosov p. 261 abstract

DFT and Mössbauer Spectroscopy Study of a FeTe_0.5Se_0.5 Single Crystal

A. G. Kiiamov, D. A. Tayurskii, F. G. Vagizov, D. Croitori, V. Tsurkan, H.-A. Krug von Nidda and L. R. Tagirov p. 266 abstract

Electron Paramagnetic Resonance in Ge/Si Heterostructures with Mn-Doped Quantum Dots

A. F. Zinovieva, V. A. Zinovyev, N. P. Stepina, A. V. Katsuba, A. V. Dvurechenskii, A. K. Gutakovskii, L. V. Kulik, A. S. Bogomyakov, S. B. Erenburg, S. V. Trubina and M. Voelskow p. 270 abstract

Proximity of Ferromagnetic Nickel to Paramagnetic Instability