Contents

JETP Letters

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Vol. 118, No. 2, 2023

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Fields, Particles, and Nuclei

Effect of Quantum Decoherence on Collective Neutrino Oscillations

A. A. Purtova, K. L. Stankevich and A. I. Studenikin p. 83  abstract

Calculations of the Binding-Energy Differences for Highly-Charged Ho and Dy Ions

I. M. Savelyev, M. Y. Kaygorodov, Y. S. Kozhedub, I. I. Tupitsyn and V. M. Shabaev p. 87  abstract

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Condensed Matter

High-Resolution Spectroscopy of the ErCrO₃ Crystal: A New Phase Transition?

A. Jablunovskis, E. P. Chukalina, L. H. Yin and M. N. Popova p. 92  abstract

Plasmons in a Strip with an Anisotropic Two-Dimensional Electron Gas Fully Screened by a Metal Gate

D. A. Rodionov and I. V. Zagorodnev p. 100  abstract

Topological Memory with Multiply-Connected Planar Magnetic Nanoelements

K. L. Metlov p. 105  abstract

Method to Reveal and Investigate Almost 2D Fermi Surfaces in Layered Conductors: Universal Resistivity in a Parallel Magnetic Field

A. G. Lebed p. 112  abstract

Photoinduced Nonthermal Reduction of the Coercive Field in FePt and FePt_0.84Rh_0.16 Epitaxial Thin Films in the L1₀ Phase

A. V. Petrov, S. I. Nikitin, L. R. Tagirov, A. S. Kamzin and R. V. Yusupov p. 117  abstract

Memory Effects in the Magnetoresistance of Two-Component Electron Systems

K. S. Denisov, K. A. Baryshnikov and P. S. Alekseev p. 123  abstract

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Consensed Matter

Cascade Formation of Topological Defects and Satellite Droplets in Liquid Crystals at Dynamic Capillary Instability

P. V. Dolganov, N. A. Spiridenko, V. K. Dolganov, E. I. Kats and K. D. Baklanova p. 130  abstract

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Condensed Matter

Detection of Radiation Generated by Moving Josephson Vortices in a Bi_{2 + x}Sr_{2 – x}CuO_{6 + δ} Single Crystal in High Magnetic Fields Directly in the Sample

S. I. Vedeneev p. 136  abstract

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Methods of Theoretical Physics

pq-Duality: a Set of Simple Examples

Z. Zakirova, V. Lunev and N. Beloborodov p. 142  abstract

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Biophysics

Resonances for a Solvable Model of Ultrasound Scattering by a Cell Membrane

I. Y. Popov and T. S. Yurova p. 146  abstract

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