JETP Letters最新文献_第6页

General Scaling Behavior of Superconductors 超导体的一般标度行为

IF 1.3 4区物理与天体物理

JETP Letters Pub Date : 2025-07-25 DOI: 10.1134/S0021364025607687

V. R. Shaginyan, A. Z. Msezane, S. A. Artamonov

{"title":"General Scaling Behavior of Superconductors","authors":"V. R. Shaginyan, A. Z. Msezane, S. A. Artamonov","doi":"10.1134/S0021364025607687","DOIUrl":"10.1134/S0021364025607687","url":null,"abstract":"The physics of high-Tc superconductors, which has been a major topic in condensed matter physics for more than thirty years, reveals some features of conventional superconductors. We analyze the scaling of the condensation energy ({{E}_{Delta }}) divided by (gamma ), ({{E}_{Delta }}{text{/}}gamma simeq N(0)Delta _{1}^{2}{text{/}}gamma ), that equally applicable to both conventional and unconventional high-Tc superconductors. Here, (N(0)) is the density of states, ({{Delta }_{1}}) is the maximum value of the superconducting gap, and (gamma ) is the Sommerfeld coefficient. Basing on this observation, we analyze experimental facts that reveal the general scaling properties of both high-Tc and ordinary superconductors, and theoretically explain that the Homes’ law ({{rho }_{{s0}}} propto {{T}_{{text{c}}}}sigma ({{T}_{{text{c}}}})) is applicable to the both types of superconductors. Here, (sigma ) is the conductivity, (T) is the temperature, Tc is the superconducting transition temperature, ({{lambda }_{D}}) is the zero-T penetration depth, and ({{rho }_{{s0}}}) is the superconducting electron density. For the first time, we also explain the reason of violation of the Homes’ law. Our theoretical results agree well with experimental facts.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"122 3","pages":"158 - 164"},"PeriodicalIF":1.3,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025607687.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structure of a Shock Front in a Three-Dimensional Complex Plasma 三维复杂等离子体中激波锋的结构

IF 1.3 4区物理与天体物理

JETP Letters Pub Date : 2025-07-18 DOI: 10.1134/S0021364025606438

D. A. Zamorin, A. V. Zobnin, A. M. Lipaev, R. A. Syrovatka, V. N. Naumkin, A. D. Usachev, O. D. Kononenko, M. H. Toma, M. Kretschmer, C.-R. Du, O. F. Petrov

引用次数: 0

On Generation Thresholds of a Chiral Laser of Circularly Polarized Radiation 圆偏振辐射手性激光器的产生阈值研究

IF 1.3 4区物理与天体物理

JETP Letters Pub Date : 2025-07-18 DOI: 10.1134/S0021364025606591

N. V. Valenko, N. A. Gippius, V. D. Kulakovskii, S. G. Tikhodeev

引用次数: 0

Bose–Einstein Statistics, Random Block Ciphers, and the One-Time Notepad in Quantum Cryptography 玻色-爱因斯坦统计、随机分组密码和量子密码学中的一次性记事本

IF 1.3 4区物理与天体物理

JETP Letters Pub Date : 2025-07-18 DOI: 10.1134/S002136402560644X

S. N. Molotkov, I. S. Sushchev

引用次数: 0

Linearly Polarized Narrow Light Beams in a Kerr Medium 克尔介质中的线偏振窄光束

IF 1.3 4区物理与天体物理

JETP Letters Pub Date : 2025-07-18 DOI: 10.1134/S0021364025606542

V. P. Ruban

引用次数: 0

Anisotropy of the Elastic Properties of Disordered Cubic Vanadium Monoxide VOy in the Homogeneity Region 无序立方氧化钒在均匀区弹性性质的各向异性

IF 1.3 4区物理与天体物理

JETP Letters Pub Date : 2025-07-18 DOI: 10.1134/S002136402560661X

A. I. Gusev

引用次数: 0

Influence of the Terahertz Field on the Processes of Low- and High-Order Harmonic Generation by Femtosecond Laser Pulses in a Gaseous Medium 太赫兹场对飞秒激光脉冲在气体介质中产生低次和高次谐波过程的影响

IF 1.3 4区物理与天体物理

JETP Letters Pub Date : 2025-07-18 DOI: 10.1134/S0021364025606712

P. A. Shulyndin, B. V. Rumiantsev, E. A. Migal, A. V. Pushkin, F. V. Potemkin

{"title":"Influence of the Terahertz Field on the Processes of Low- and High-Order Harmonic Generation by Femtosecond Laser Pulses in a Gaseous Medium","authors":"P. A. Shulyndin, B. V. Rumiantsev, E. A. Migal, A. V. Pushkin, F. V. Potemkin","doi":"10.1134/S0021364025606712","DOIUrl":"10.1134/S0021364025606712","url":null,"abstract":"The influence of a strong (up to 7.5 MV/cm) terahertz field on the processes of low (2–5 eV) and high (55‒83 eV) order harmonic generation of the near-infrared radiation with a wavelength of 1.24 μm under the excitation of an argon jet has been experimentally investigated. It has been shown that the quasistatic terahertz field leads to the appearance of even low- and high-order harmonics, which is due to the violation of the spatial symmetry of the atomic potential in the first case and to the terahertz-induced breaking of the infrared waveform symmetry in the second case. It has been experimentally observed that the terahertz field leads to the simultaneous modulation of the intensity of both even and odd high-order harmonics, while a change in the intensity of low-order harmonics has been observed only for even components. Even low (2nd) and high (70th) order harmonics demonstrate different power-law dependences on the terahertz field strength under an increase in the infrared pulse energy, which is due to the appearance of additional radiation at the frequency of the second harmonic under the formation of laser-induced plasma.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 11","pages":"846 - 852"},"PeriodicalIF":1.3,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025606712.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Glass Transition Line of As2S3 on the P, T-Phase Diagram up to the Metallization Pressures of the Melt P， t相图上As2S3的玻璃化过渡线直至熔体的金属化压力

IF 1.3 4区物理与天体物理

JETP Letters Pub Date : 2025-07-18 DOI: 10.1134/S0021364025606633

O. B. Tsiok, V. V. Brazhkin, E. Bychkov, A. S. Tverjanovich

{"title":"Glass Transition Line of As2S3 on the P, T-Phase Diagram up to the Metallization Pressures of the Melt","authors":"O. B. Tsiok, V. V. Brazhkin, E. Bychkov, A. S. Tverjanovich","doi":"10.1134/S0021364025606633","DOIUrl":"10.1134/S0021364025606633","url":null,"abstract":"An inelastic behavior is observed in the form of diffuse structural transformations with complex logarithmic kinetics in most chalcogenide glasses compressed above pressures of 1–1.5 GPa. The corresponding melts also exhibit a change in the structure of the intermediate- and short-range orders usually in the pressure range from 1 to 10 GPa. At the same time, the glass transition temperature Tg for chalcogenide systems at pressures above 1 GPa has not yet been studied. In this work, the glass transition in the “classical” glass-forming compound As2S3 has been studied for the first time at a high hydrostatic pressure up to 5 GPa, i.e., in the range where diffuse transformations and growth of chemical disorder in glass and in melt are observed. At higher pressures, smooth metallization and chemical disproportion of the melt begins, and glasses are not formed during cooling. The initial slope dTg/dP of the glass transition line agrees well with the estimate from the Prigogine–Defay thermodynamic relations. The glass transition line has a large curvature, sharply flattens under compression up to a pressure of 3 GPa, and then becomes almost straight. The ratio of the glass transition temperature to the melting point Tg/Tm for As2S3 decreases from 0.8 to 0.6 with increasing pressure to 5 GPa, which indicates a drastic decrease in the tendency to glass formation under compression. A possible relationship between the features of the glass transition line and transformations in melt and glass at the corresponding pressures has been discussed.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 11","pages":"859 - 863"},"PeriodicalIF":1.3,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025606633.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement of the Energy Spectrum of Short-Pulse Neutron Sources Based on Photonuclear Reactions 基于光核反应的短脉冲中子源能谱测量

IF 1.3 4区物理与天体物理

JETP Letters Pub Date : 2025-07-18 DOI: 10.1134/S0021364025606578

S. A. Shulyapov, E. M. Starodubtseva, I. N. Tsymbalov, A. Yu. Zavorotny, M. A. Bakulev, A. S. Chepurnov, A. A. Kuznetsov, A. B. Savel’ev

引用次数: 0

Comparison of Spiral Waves in Simplified Cardiac Tissue Models 简化心脏组织模型中螺旋波的比较

IF 1.3 4区物理与天体物理

JETP Letters Pub Date : 2025-07-15 DOI: 10.1134/S0021364025600053

S. Mohanty, D. Prusty, A. R. Nayak

引用次数: 0