JETP Letters最新文献_第2页

Drop in the Hall Resistance As a Possible Indication of a Transition to a Zero-Filling-Factor Quantum Hall Effect State in a HgTe/CdHgTe Double Quantum Well 在HgTe/CdHgTe双量子阱中，霍尔电阻下降作为向零填充因子量子霍尔效应态过渡的可能指示

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-10-01 DOI: 10.1134/S0021364026601247

M. V. Yakunin, V. N. Neverov, A. S. Bogolyubskii, S. D. Popov, K. V. Turutkin, A. Yu. Pavlova, S. V. Gudina, N. S. Sandakov, N. N. Mikhailov, S. A. Dvoretsky

引用次数: 0

On the Possibility of Lasing in Luminophores with an Anomalously Large Stokes Shift 关于具有异常大斯托克斯位移的发光团中激光的可能性

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-10-01 DOI: 10.1134/S0021364026607578

E. V. Parfenova, N. V. Slyusarenko, D. M. Ezhov, O. V. Shabanova, K. A. Shaikhutdinov, E. A. Slyusareva

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Enhancement of Axial Magnetic Field Generation during Relativistic Self-Channeling of Laser Radiation Propagating Along Thin Films 激光沿薄膜传播相对论性自通道时轴向磁场产生的增强

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-10-01 DOI: 10.1134/S0021364025610048

V. A. Kuleshova, A. V. Korzhimanov

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Molecular Dynamics Study of the Formation and Diffusion of H3CS–Au–SCH3 Complexes on the Au(111) and Ag(111) Surfaces H3CS-Au-SCH3配合物在Au（111）和Ag（111）表面形成和扩散的分子动力学研究

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-10-01 DOI: 10.1134/S0021364026607402

A. G. Syromyatnikov, A. M. Saletsky, A. L. Klavsyuk

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Radiation-Induced Defects in Electron-Irradiated Pure and Nitrogen-Doped High-Pressure High-Temperature Diamond: Decrease in the Thermal Conductivity 电子辐照纯和氮掺杂高压高温金刚石的辐射缺陷：热导率的降低

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-10-01 DOI: 10.1134/S0021364026607128

A. V. Inyushkin, A. N. Taldenkov, D. A. Chernodubov, A. P. Yelisseyev, V. G. Vins

{"title":"Radiation-Induced Defects in Electron-Irradiated Pure and Nitrogen-Doped High-Pressure High-Temperature Diamond: Decrease in the Thermal Conductivity","authors":"A. V. Inyushkin, A. N. Taldenkov, D. A. Chernodubov, A. P. Yelisseyev, V. G. Vins","doi":"10.1134/S0021364026607128","DOIUrl":"10.1134/S0021364026607128","url":null,"abstract":"The effect of 3-MeV electron irradiation at a fluence of 5 × 1018 cm–2 on the thermal conductivity κ(T) of type IIa and type Ib high-pressure high-temperature diamond single crystals with nitrogen concentrations of less than 1 ppm and approximately 70 ppm, respectively, has been studied. Irradiation reduces the thermal conductivity κ(T) over the entire studied temperature range 5 K < T < 410 K. For pure diamond, the strongest decrease in κ(T) by a factor of 350 is observed at 25–30 K, but the thermal conductivity κ(T) at room temperature T = 300 K decreases by a factor of only 1.56. Compared to pure diamond, the thermal conductivity of irradiated doped diamond decreases much less strongly at low temperatures, but more strongly at T > 140 K. After irradiation, the difference in the reduction of the thermal conductivity between the two types of diamond is so large that κ(T) for doped diamond is larger than that for pure diamond at T < 50 K and is an order of magnitude larger at 5 K. Experimental data allow the assumption that the rate of phonon scattering by neutral radiation defects—vacancies, their aggregates, and Frenkel pairs (pairs of interacting interstitial atoms and vacancies)—in pure diamond is much higher than that by such negatively charged defects in nitrogen-doped diamond at low temperatures. However, the ratio of scattering rates becomes inverse at high temperatures.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"124 4","pages":"281 - 290"},"PeriodicalIF":1.1,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149097964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser-Controlled Polarization Effects in High-Harmonic Generation from Zero-Dimensional Nanostructures 零维纳米结构高谐波产生中的激光控制极化效应

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-09 DOI: 10.1134/S0021364026607153

A. G. Ghazaryan, Kh. V. Sedrakian

引用次数: 0

Anomalous Hall Effect in Epitaxially Strained Thin Films of Strontium Iridate 外延应变铱酸锶薄膜中的反常霍尔效应

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-09 DOI: 10.1134/S0021364026607396

G. D. Ul’ev, G. A. Ovsyannikov, K. I. Konstantinyan, A. M. Petrzhik, A. V. Mashirov

{"title":"Anomalous Hall Effect in Epitaxially Strained Thin Films of Strontium Iridate","authors":"G. D. Ul’ev, G. A. Ovsyannikov, K. I. Konstantinyan, A. M. Petrzhik, A. V. Mashirov","doi":"10.1134/S0021364026607396","DOIUrl":"10.1134/S0021364026607396","url":null,"abstract":"Low-temperature magnetotransport of thin epitaxial films of the topological semimetal SrIrO3 grown on (110)Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN–PT) and (001)SrTiO3 substrates, which induce tensile (ε = +1.5%) and compressive (ε = –1.4%) strains, respectively, has been studied. An anomalous Hall effect, which is caused by the presence of Jeff = 1/2 states in the electronic spectrum of the Berry curvature, has been detected in both films. The anomalous Hall effect has been observed for the first time in the SrIrO3/PMN–PT film, where the epitaxial strain changes the sign of the Hall coefficient and significantly increases the anomalous Hall conductivity compared to the SrIrO3/SrTiO3 film. The behaviors of the magnetoresistance in the SrIrO3/SrTiO3 and SrIrO3/PMN–PT films are qualitatively different. In the former film, the magnetoresistance is negative, has a magnitude of 3.3%, exhibits a V-shaped magnetic field dependence, and is described by a superposition of weak localization and a classical orbital background proportional to the square of the external magnetic field. In the latter film, the conductivity film exhibits a peak at zero external field, which is typical of weak antilocalization. Approximation of the magnetic-field dependence of the film resistance using the Maekawa–Fukuyama model with a quadratic magnetic field background yields a dephasing length of Lφ = 10–40 nm and a dephasing exponent of p ≈ 1, which corresponds to a two-dimensional Coulomb interaction between electrons. The sign of the epitaxial strain determines the type of quantum corrections to the conductivity (weak antilocalization or localization) and the magnitude of the anomalous Hall effect.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"124 3","pages":"210 - 217"},"PeriodicalIF":1.1,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364026607396.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909739","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

Influence of the Zeeman Effect on the Quantum 3D–2D Crossover in Layered Conductors 塞曼效应对层状导体中量子3D-2D交叉的影响

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-09 DOI: 10.1134/S0021364026606895

S. Sh. Rekhviashvili

引用次数: 0

Description of Magnon Dissipation in Yttrium Iron Garnet Films Using the Kubo Formalism: the Acoustic Antiresonance Effect 用Kubo形式描述钇铁石榴石薄膜中的磁振子耗散：声学反共振效应

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-09 DOI: 10.1134/S002136402660730X

A. N. Kuzmichev, P. M. Vetoshko, Yu. M. Bunkov

{"title":"Description of Magnon Dissipation in Yttrium Iron Garnet Films Using the Kubo Formalism: the Acoustic Antiresonance Effect","authors":"A. N. Kuzmichev, P. M. Vetoshko, Yu. M. Bunkov","doi":"10.1134/S002136402660730X","DOIUrl":"10.1134/S002136402660730X","url":null,"abstract":"The acoustic antiresonance in the magnon dissipation spectrum of yttrium iron garnet films on a gadolinium gallium garnet substrate has been described. The frequency-dependent energy loss Γ( f ) of a uniform magnon mode due to the magnetoelastic interaction with standing acoustic modes of the substrate has been calculated using the Kubo formalism. It has been shown that the linear relationship between the condensate critical field and the energy loss Γ( f ) reproduces the positions and widths of the resonances but does not describe the deep asymmetric dips in the antiresonances. To ensure quantitative agreement with experiment, two nonlinear corrections have been introduced: the Bose–Einstein suppression of the phonon channel with an exponent of 5/2 and the Fano interference term, which describes quantum interference between the direct and resonant scattering channels. the effective temperature of the phonon bath T * ≈ 2.2 K, as well as the parameters of the Fano resonances, including the width γFano ≈ 65 kHz and the asymmetry parameter q = –2.5, has been determined from the approximation of the experimental data. The proposed model explains all the observed features of dissipation and opens up the possibility of targeted control of the coherence time of magnon states by designing the phonon spectrum of the substrate.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"124 3","pages":"204 - 209"},"PeriodicalIF":1.1,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bragg–Laue Diffraction of X-Ray Beams from a Bent Crystal 弯曲晶体x射线的布拉格-劳衍射

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-09 DOI: 10.1134/S0021364026607190

D. V. Kazakov, S. I. Kolosov, V. I. Punegov

引用次数: 0