Vol. 90, No. 8, 2026

Bulletin of the Russian Academy of Sciences: Physics

Phenomenological Description of Thermal and Dielectric Anomalies in KH₂PO₄

S. V. Pavlov p. 1197 abstract

Simulation of the Polarization Switching in Ferroelectrics

V. N. Nechaev and A. V. Shuba p. 1204 abstract

Monte Carlo Study of the Shift of the Critical Temperature in Ferroelectric Films

O. S. Ergina and O. G. Maksimova p. 1212 abstract

Correlations between Octahedral Tilts and Ferroelastic Strains in Pnma Perovskites

E. G. Trotsenko and M. V. Talanov p. 1220 abstract

Internal Field and Self-Polarization in Mechanically Stressed Spherulite Thin Films of Lead Zirconate Titanate

I. P. Pronin, A. R. Valeeva, E. Yu. Kaptelov, D. A. Kiselev, O. N. Sergeeva, and M. V. Staritsyn p. 1225 abstract

Harmonic Analysis of Double Dielectric Hysteresis Loops of Rb₂ZnCl₄ Crystal in an Incommensurate Phase after Electrical Annealing

V. V. Gorbatenko, B. N. Prasolov, and N. V. Datsenko p. 1232 abstract

Study of Electroelastic Properties of Ferroelectrically Hard Porous Piezoceramics

A. N. Rybyanets, I. A. Shvetsov, E. I. Petrova, and M. G. Konstantinova p. 1237 abstract

Microstructural Mechanisms of Electromechanical Losses in Dense and Porous Ferroelectrically Hard Piezoceramics

I. A. Shvetsov, N. A. Shvetsova, M. G. Konstantinova, M. A. Lugovaya, and N. A. Kolpacheva p. 1244 abstract

Elastic Relaxation and Hysteresis in Relaxor Piezoceramics Induced by Weak Electric Fields

M. A. Lugovaya, E. I. Petrova, N. A. Shvetsova, and A. N. Rybyanets p. 1252 abstract

Nonlinear Dielectric Response of (1 – x)[0.7PbZrO₃–0.3(K_0.5Bi_0.5)TiО₃]–xSrTiO₃ Solid Solutions

L. N. Korotkov and M. A. Pankova p. 1259 abstract

Field-Theoretical Form of the Molecular Dynamics Method in Condensed Matter Physics

A. Yu. Zakharov p. 1264 abstract

Critical Current in Oxide Superconductors with Low-Angle Tilt Boundaries and One-Dimensional Twin Boundary Defect

Yu. A. Pomerantsev p. 1271 abstract

Calculation of Internal Friction in Solids Based on the Marchenko–Misbah Plasticity Model

D. O. Frolov p. 1278 abstract

Debye Relaxation in Liquid Water as a Demonstration of Self-Diffusion and Viscosity

A. A. Volkov and S. V. Chuchupal p. 1284 abstract

Effect of the Barium Donor Impurity Concentration on the Dielectric Properties of Potassium Sodium Niobate Ceramics

E. V. Barabanova, A. A. Makulin, and A. I. Ivanova p. 1292 abstract

Technological Approaches to Controlling the Structural and Electrophysical Properties of Ferroelectric Films

A. V. Tumarkin, E. N. Sapego, A. R. Karamov, A. Bogdan, O. E. Zaitsev, and I. N. Zakasovskii p. 1300 abstract

Dependence of the Properties of Temperature-Stable Ferroelectric Ceramics PZT-21 on Manufacturing Process Factors

M. A. Marakhovskiy and A. A. Panich p. 1309 abstract

Dielectric Relaxation and Activation of Dielectric Constant near the Ferroelectric Phase Transition in BaTiO₃ and Pb_0.9Ba_0.1(Zr_0.5Ti_0.5)O₃ Ceramics

D. V. Kuzenko p. 1315 abstract

Exitons in Crystals of Lithium Niobate Doped with Iron

R. M. Magomadov, M. E. Zobov, S. P. Kramynin, and S. N. Tsebaev p. 1321 abstract

Inelasticity of a Porous Ti–18Zr–15Nb Powder Alloy

G. V. Markova, D. V. Permyakova, and A. D. Gusev p. 1327 abstract

Relaxation of the Strength Properties of Ultrafine-Grained Copper during Hydrostatic Extrusion

E. V. Iasharova, A. N. Gangalo, S. V. Vasiliev, and E. A. Sviridova p. 1334 abstract

Temperature Relaxation of the Contact Angle during the Growth of Silicon Nanowires by the Vapor→Liquid→Solid Mechanism

V. A. Nebol’sin, V. V. Korchagin, and V. V. Maltsev p. 1340 abstract

Effect of a-Si and Ta₂O₅ Interlayers on the Current–Voltage Nonlinearity in Capacitor‑Type Cu/(CO₄₀Fe₄₀B₂₀)_x(SiO₂)_100–x/LiNbO₃/Cr/Cu/Cr Memristors

A. V. Sitnikov, Yu. E. Kalinin, I. V. Babkina, A. E. Nikonov, A. R. Shakurov, and M. N. Kopytin p. 1348 abstract

Influence of the Composition of the Gas Medium in Reactive Ion-Beam Sputtering on the Electrical Properties of Nitrogen-Doped ZnO Films

V. A. Makagonov, K. S. Gabriels, Yu. E. Kalinin, and A. Yu. Lopatin p. 1355 abstract

Monte Carlo Modeling of Multilayer Shielding of Components of Neutron Diffraction Stations Using ABS Plastic with Boron Nitride

N. A. Kovalenko, V. V. Tarnavich, Yu. O. Chetverikov, K. A. Terentyev, I. A. Bedretdinov, and V. V. Voronin p. 1362 abstract

Stress Relief in Ferroelectric Solid Solutions Containing a Tetragonal Phase in a Morphotropic Region

V. Yu. Topolov p. 1370 abstract

Hysteresis Phenomena in the First Order Phase Transition Region

V. N. Nechaev and A. V. Shuba p. 1376 abstract

Effect of Intensive Mechanical Treatment on the Crystal Lattice and Dielectric Properties of Barium Titanate

N. A. Tolstykh, E. V. Ievleva, L. I. Yanchenko, R. G. Anisimov, L. N. Korotkov, B. K. Abdulvakhidov, and K. G. Abdulvakhidov p. 1385 abstract

Complex Electromechanical Characteristics and Microstructural Features of Ferroelectrically “Soft” Porous Piezoceramics

N. A. Shvetsova, I. A. Shvetsov, N. A. Kolpacheva, and A. N. Rybyanets p. 1390 abstract

Internal Friction and Dielectric Properties of Modified Pb(Zr_0.52Ti_0.48)O₃ Ceramics

L. N. Korotkov, N. A. Tolstykh, D. A. Lisitsky, A. A. Kamynin, I. I. Popov, N. V. Korotunov, and A. E. Gupalova p. 1399 abstract

Activation Energy of the Dielectric Permittivity of Pb(Zr,Ti)O₃ Solid Solutions near the Morphotropic Boundary Below the Curie Temperature

D. V. Kuzenko, A. I. Bazhin, and N. A. Spiridonov p. 1406 abstract

Tuning the Porous Microstructure of Sol–Gel-Derived PZT Films

V. A. Yakushev, A. S. Vishnevskiy, D. S. Seregin, D. A. Abdullaev, and K. A. Vorotilov p. 1412 abstract

Electromechanical Hysteresis and Relaxation Processes in Relaxor Piezoceramics under Strong Electric Fields

A. N. Reznichenko, M. A. Lugovaya, E. I. Petrova, D. I. Makaryev, and A. N. Rybyanets p. 1417 abstract

Flexoelectric Relaxation in Barium Titanate Ceramics

V. G. Zalesskii, E. D. Obozova, K. V. Dyakonov, and A. V. Khalipov p. 1422 abstract

Dielectric and Magnetic Properties of Nanocrystalline Bismuth Ferrite under Exposed Gamma and Neutron Radiation

F. M. D. Al-Jaafari, L. A. Mahmood, A. A. Ali, and M. A. Mohammed p. 1427 abstract

Design, Modeling, and Experimental Realization of a Surface Ion Trap for ¹⁷⁴Yb⁺

T. S. Abbasov, I. A. Stolyarov, D. S. Chuchelov, M. I. Vaskovskaya, S. A. Zibrov, N. L. Kvashnin, P. V. Borisyuk, and I. V. Sherstov p. 1434 abstract

Modeling a DNA-Origami Nanoplatform for Super-Resolution Luminescent Imaging

U. A. Khokhryakova, M. E. Stepanov, A. I. Arzhanov, T. V. Egorova, and A. V. Naumov p. 1443 abstract

Erratum

Erratum to: Multi-Frequency Mode for Reconstruction of Acoustic Inhomogeneities by Functional Algorithm and Angular Harmonic Technique

D. I. Zotov and O. D. Rumyantseva p. 1449 abstract

Contents

Bulletin of the Russian Academy of Sciences: Physics

Erratum