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Bulletin of the Russian Academy of Sciences: Physics最新文献

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Flexoelectric Relaxation in Barium Titanate Ceramics 钛酸钡陶瓷的柔性电弛豫
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701212
V. G. Zalesskii, E. D. Obozova, K. V. Dyakonov, A. V. Khalipov
{"title":"Flexoelectric Relaxation in Barium Titanate Ceramics","authors":"V. G. Zalesskii,&nbsp;E. D. Obozova,&nbsp;K. V. Dyakonov,&nbsp;A. V. Khalipov","doi":"10.1134/S1062873826701212","DOIUrl":"10.1134/S1062873826701212","url":null,"abstract":"<p>Polarization response to inhomogeneous deformation was investigated in unpoled barium titanate ceramic plates. Here we report the measurements of the temperature dependence of the flexoelectric response and its relaxation.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1422 - 1426"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exitons in Crystals of Lithium Niobate Doped with Iron 掺铁铌酸锂晶体中的逸出子
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701091
R. M. Magomadov, M. E. Zobov, S. P. Kramynin, S. N. Tsebaev
{"title":"Exitons in Crystals of Lithium Niobate Doped with Iron","authors":"R. M. Magomadov,&nbsp;M. E. Zobov,&nbsp;S. P. Kramynin,&nbsp;S. N. Tsebaev","doi":"10.1134/S1062873826701091","DOIUrl":"10.1134/S1062873826701091","url":null,"abstract":"<p>The processes of formation and decay of excitons in a lithium niobate crystal with an iron impurity (0.06%) were investigated. Studies of thermally stimulated luminescence and thermally stimulated conductivity showed that the probability of exciton decay is higher than the probability of exciton formation and that the exciton spectrum in lithium niobate crystals with an iron impurity depends on the duration of illumination of the crystal.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1321 - 1326"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulation of the Polarization Switching in Ferroelectrics 铁电体中极化开关的仿真
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701017
V. N. Nechaev, A. V. Shuba
{"title":"Simulation of the Polarization Switching in Ferroelectrics","authors":"V. N. Nechaev,&nbsp;A. V. Shuba","doi":"10.1134/S1062873826701017","DOIUrl":"10.1134/S1062873826701017","url":null,"abstract":"<p>A brief review of the current state of modeling concepts for hysteresis phenomena is presented. A phenomenological model for polarization switching in ferroelectrics based on the Markov chain theory is proposed. As an example of the model operation, features of hysteresis loss behavior are established in the presence of two types of stoppers for domain wall motion in the material.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1204 - 1211"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Internal Friction and Dielectric Properties of Modified Pb(Zr0.52Ti0.48)O3 Ceramics 改性Pb(Zr0.52Ti0.48)O3陶瓷的内摩擦和介电性能
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701182
L. N. Korotkov, N. A. Tolstykh, D. A. Lisitsky, A. A. Kamynin, I. I. Popov, N. V. Korotunov, A. E. Gupalova
{"title":"Internal Friction and Dielectric Properties of Modified Pb(Zr0.52Ti0.48)O3 Ceramics","authors":"L. N. Korotkov,&nbsp;N. A. Tolstykh,&nbsp;D. A. Lisitsky,&nbsp;A. A. Kamynin,&nbsp;I. I. Popov,&nbsp;N. V. Korotunov,&nbsp;A. E. Gupalova","doi":"10.1134/S1062873826701182","DOIUrl":"10.1134/S1062873826701182","url":null,"abstract":"<p>The low frequency acoustic and dielectric properties of ferroelectric solid solution 0.9Pb<sub>0.95</sub>Sr<sub>0.05</sub>(Zr<sub>0.52</sub>Ti<sub>0.48</sub>)O<sub>3</sub>–0.05Pb(Zn<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>–0.05Pb(Mn<sub>1/3</sub>Sb<sub>2/3</sub>)O<sub>3</sub> + 0.1 mol % CeO<sub>2</sub> was studied within the temperature range of 20–350°C. It was found that the material undergoes a diffuse ferroelectric phase transition near a temperature of <i>T</i><sub>m</sub> ≈ 260°C. Within the ferroelectric phase, a noticeable softening of the elastic modulus and a strong peak in internal friction were detected. It is suggested that these anomalies are due to the dynamics of ferroelastic domains.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1399 - 1405"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Intensive Mechanical Treatment on the Crystal Lattice and Dielectric Properties of Barium Titanate 强化机械处理对钛酸钡晶格和介电性能的影响
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701169
N. A. Tolstykh, E. V. Ievleva, L. I. Yanchenko, R. G. Anisimov, L. N. Korotkov, B. K. Abdulvakhidov, K. G. Abdulvakhidov
{"title":"Effect of Intensive Mechanical Treatment on the Crystal Lattice and Dielectric Properties of Barium Titanate","authors":"N. A. Tolstykh,&nbsp;E. V. Ievleva,&nbsp;L. I. Yanchenko,&nbsp;R. G. Anisimov,&nbsp;L. N. Korotkov,&nbsp;B. K. Abdulvakhidov,&nbsp;K. G. Abdulvakhidov","doi":"10.1134/S1062873826701169","DOIUrl":"10.1134/S1062873826701169","url":null,"abstract":"<p>The effect of the force action in a combination with shear strain on the crystal lattice and dielectric permittivity of ceramic barium titanate is studied. A nonmonotonic dependence of the unit-cell parameters and dielectric properties of the material on the pressure applied during force action in a combination with shear strain is found. A correlation between the dielectric permittivity, the Curie and Curie–Weiss temperatures, and the degree of tetragonality of the crystal lattice is revealed. The research results are discussed considering an influence of lattice defects on the physical properties of ceramic barium titanate.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1385 - 1389"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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-Si和Ta2O5中间层对电容型Cu/(CO40Fe40B20)x(SiO2) 100-x /LiNbO3/Cr/Cu/Cr记忆电阻器电流-电压非线性的影响
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701133
A. V. Sitnikov, Yu. E. Kalinin, I. V. Babkina, A. E. Nikonov, A. R. Shakurov, M. N. Kopytin
{"title":"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","authors":"A. V. Sitnikov,&nbsp;Yu. E. Kalinin,&nbsp;I. V. Babkina,&nbsp;A. E. Nikonov,&nbsp;A. R. Shakurov,&nbsp;M. N. Kopytin","doi":"10.1134/S1062873826701133","DOIUrl":"10.1134/S1062873826701133","url":null,"abstract":"<p>We studied the influence of a-Si and Ta<sub>2</sub>O<sub>5</sub> interlayers on resistive switching processes, the nonlinearity of current–voltage characteristics in the induced low-resistance state, and conductivity mechanisms as a function of the current flowing through the investigated structures. The origins of the nonlinearity of the current–voltage characteristics were examined, and the limiting charge transport mechanisms in the fabricated structures were identified.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1348 - 1354"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hysteresis Phenomena in the First Order Phase Transition Region 一阶相变区的滞后现象
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701340
V. N. Nechaev, A. V. Shuba
{"title":"Hysteresis Phenomena in the First Order Phase Transition Region","authors":"V. N. Nechaev,&nbsp;A. V. Shuba","doi":"10.1134/S1062873826701340","DOIUrl":"10.1134/S1062873826701340","url":null,"abstract":"<p>Based on the Markov chains theory the phenomenological models of dielectric and temperature hysteresis in ferroics with a first order phase transition in a two-phase temperature region are proposed. The frequency dependences of dielectric hysteresis loops and their main characteristics were determined numerical analytically, using the example of BaTiO<sub>3</sub>. The temperature hysteresis loops of the phase transition were constructed depending on the natural frequency oscillations of interphase boundary.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1376 - 1384"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Field-Theoretical Form of the Molecular Dynamics Method in Condensed Matter Physics 凝聚态物理中分子动力学方法的场理论形式
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701273
A. Yu. Zakharov
{"title":"Field-Theoretical Form of the Molecular Dynamics Method in Condensed Matter Physics","authors":"A. Yu. Zakharov","doi":"10.1134/S1062873826701273","DOIUrl":"10.1134/S1062873826701273","url":null,"abstract":"<p>We presented a relativistic quantum generalization of the nonrelativistic classical Hamiltonian dynamics of a system of interacting atoms. The interaction between atoms is considered within the concept of a covariant auxiliary field. It is established that the auxiliary field is a superposition of elementary fields of the Klein–Gordon type. The field contribution to the thermodynamics of a system of interacting atoms is investigated.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1264 - 1270"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dielectric and Magnetic Properties of Nanocrystalline Bismuth Ferrite under Exposed Gamma and Neutron Radiation 辐照下纳米晶铋铁氧体的介电和磁性能
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701236
F. M. D. Al-Jaafari, L. A. Mahmood, A. A. Ali, M. A. Mohammed
{"title":"Dielectric and Magnetic Properties of Nanocrystalline Bismuth Ferrite under Exposed Gamma and Neutron Radiation","authors":"F. M. D. Al-Jaafari,&nbsp;L. A. Mahmood,&nbsp;A. A. Ali,&nbsp;M. A. Mohammed","doi":"10.1134/S1062873826701236","DOIUrl":"10.1134/S1062873826701236","url":null,"abstract":"<p>Magnetic hysteresis loops of the nanostructure ceramic samples of BiFeO<sub>3</sub> subjected to neutron and γ-irradiation, as well as the initial sample, were studied at room temperature. Their electrical and dielectric properties were studied within the temperature range of 30–500°C at a frequency of 100 kHz. The experiment revealed a weakening of the magnetic response of BiFeO<sub>3</sub> because of exposure to ionizing radiation. The effect of radiation on the dielectric and electrical properties of the material is discussed.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1427 - 1433"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148823002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of the Composition of the Gas Medium in Reactive Ion-Beam Sputtering on the Electrical Properties of Nitrogen-Doped ZnO Films 反应离子束溅射中气体介质组成对氮掺杂ZnO薄膜电性能的影响
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-08-27 DOI: 10.1134/S1062873826701145
V. A. Makagonov, K. S. Gabriels, Yu. E. Kalinin, A. Yu. Lopatin
{"title":"Influence of the Composition of the Gas Medium in Reactive Ion-Beam Sputtering on the Electrical Properties of Nitrogen-Doped ZnO Films","authors":"V. A. Makagonov,&nbsp;K. S. Gabriels,&nbsp;Yu. E. Kalinin,&nbsp;A. Yu. Lopatin","doi":"10.1134/S1062873826701145","DOIUrl":"10.1134/S1062873826701145","url":null,"abstract":"<p>The influence of the composition of the gas medium in reactive ion-beam sputtering on the electrical properties of nitrogen-doped ZnO films was studied. It was found that, in the temperature range of 300-500 K, the electron transport in the experimental films occurs via variable-range hopping over localized states near the Fermi level. The parameters of ZnO were estimated according to the Mott model. It was established that the density <i>g</i>(<i>E</i><sub>F</sub>) of localized states at the Fermi level is maximum in sputtering in a nitrogen medium and increases with increasing partial nitrogen pressure. For films deposited in a nitrogen–oxygen mixture, the density of states is lower, indicating the competing influence of oxygen and nitrogen on the formation of the defect structure.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 8","pages":"1355 - 1361"},"PeriodicalIF":0.48,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148822971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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