JETP Letters最新文献_第4页

On the Thermal Hall Effect in Boson Systems 论玻色子系统中的热霍尔效应

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-08-27 DOI: 10.1134/S0021364026607980

Yu. V. Baramygina, D. N. Aristov

引用次数: 0

Powerlike-Cosine Additions to Zakharov–Filonenko Spectrum Zakharov-Filonenko谱的幂余弦加法

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-08-27 DOI: 10.1134/S002136402660727X

V. V. Geogjaev

引用次数: 0

Testing Higgs CP Properties at the CEPC with an Additional ISR Parameter 用额外的ISR参数在CEPC上测试希格斯粒子介电常数的性质

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-08-27 DOI: 10.1134/S0021364026608018

A. Drutskoy, E. Vasenin

{"title":"Testing Higgs CP Properties at the CEPC with an Additional ISR Parameter","authors":"A. Drutskoy, E. Vasenin","doi":"10.1134/S0021364026608018","DOIUrl":"10.1134/S0021364026608018","url":null,"abstract":"We evaluate the experimental sensitivity to the (CP)-odd admixture in the standard Higgs boson for the process ({{e}^{ + }}{{e}^{ - }} to HZ). The analysis is performed assuming the future lepton collider CEPC reference detector operating at (sqrt s = 240) GeV with statistics of 5.6 ab–1. Using the WHIZARD generator with the Higgs Characterisation model and the DELPHES detector simulation framework we obtain data samples for different (CP)-odd Higgs admixture parameters ({{widetilde c}_{{ZZ}}}). The initial state radiation effects are taken into account in WHIZARD. We develop a novel data-analysis method that exploits the initial state radiation induced shift in the reconstructed event energy ({{E}_{{{text{RECO}}}}}) as an additional source of information on the Higgs (CP) structure. The method combines the initial state radiation sensitive event-energy information with three angular observables in a multidimensional likelihood analysis. The expected upper limit on the (CP)-odd Higgs admixture is improved by 15% compared with the standard analysis based on three angular variables.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"124 5","pages":"345 - 353"},"PeriodicalIF":1.1,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364026608018.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214613","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

Thermopower of Graphene under Strong Electron–Hole Scattering 石墨烯在强电子空穴散射下的热能研究

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-08-27 DOI: 10.1134/S0021364026607554

V. Atlasov, D. Svintsov

{"title":"Thermopower of Graphene under Strong Electron–Hole Scattering","authors":"V. Atlasov, D. Svintsov","doi":"10.1134/S0021364026607554","DOIUrl":"10.1134/S0021364026607554","url":null,"abstract":"We study the evolution of thermoelectric coefficients of monolayer graphene at the crossover between drift- diffusive and hydrodynamic transport regimes. The crossover is governed by the dimensionless strength of (e{-} h) interaction (r)-ratio of inter-carrier collision frequency and scattering rate with external agents, impurities and phonons. We find an anomalous growth of the Seebeck coefficient (S) in a narrow vicinity of the charge neutrality point: the maximum of density-dependent (S) scales as ({{r}^{{1/2}}}). This scaling is explained by strong suppression of electric current via electron–hole scattering when both carrier concentrations are comparable, and insensitivity of carrier thermal transport to this scattering. For the same reason, the electronic thermal conductivity (varkappa ) is first maximized at charge neutrality, and also reaches large values at high carrier density due to the partial restoration of the Wiedemann–Franz law in the monopolar limit. Between these large values, the density-dependent thermal conductivity reaches a minimum. To evaluate (S) and (varkappa ) at arbitrary collision frequencies, we develop an exactly solvable kinetic model with inter-carrier collision integrals in the generalized relaxation time approximation. We find that operation of graphene-based thermoelectric photodetectors based on (p{-} n) junctions is favored by the transition to the hydrodynamic regime, which is characterized by large thermopower and suppressed hot carrier cooling via heat diffusion to the contacts.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"124 5","pages":"380 - 389"},"PeriodicalIF":1.1,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364026607554.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214616","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

Dynamics of a Mosaic of Quasicrystals from Two Lattices When One Lattice Slides Over the Other 当一个晶格滑过另一个晶格时，两个晶格的准晶体镶嵌的动力学

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-08-27 DOI: 10.1134/S0021364026607542

L. A. Chernozatonskii, V. A. Danilin

{"title":"Dynamics of a Mosaic of Quasicrystals from Two Lattices When One Lattice Slides Over the Other","authors":"L. A. Chernozatonskii, V. A. Danilin","doi":"10.1134/S0021364026607542","DOIUrl":"10.1134/S0021364026607542","url":null,"abstract":"The discontinuous dynamics of a quasicrystalline mosaic consisting of two hexagonal or square lattices rotated by 90° relative to each other, where one lattice undergoes uniform translational motion, is considered. It is shown that small displacements of this lattice can lead to large jumps of the mosaic center to the “node” positions of the initially stationary quasicrystalline mosaic, resulting in intermittent jumps despite the uniform slow sliding of one lattice over another. Such lattice sliding in quasicrystals formed by 2D atomic layers, photonic and phononic crystals—with their weak interlayer bonding—makes it possible to use the considered effect in various applications of elements involving finite-sized quasicrystalline structures. It is also noted that, for unidirectional motion of the movable lattice, mosaic jumps can occur at discrete instants not only in the direction of its motion but also in the opposite direction. When the mosaic jumps within a quasicrystalline sample, the symmetry and arrangement of mosaic tiles are disrupted, which changes its physical dispersion properties during jumps and is expected to lead to pulsed behavior of the corresponding electronic, photonic and phononic characteristics of the sample.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"124 5","pages":"390 - 398"},"PeriodicalIF":1.1,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364026607542.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214545","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

Optical Frequency Comb Generation in a Cylindrical Whispering Gallery Mode Microresonator 在圆柱低语廊模式微谐振器中产生光频梳

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-08-22 DOI: 10.1134/S0021364026607281

A. D. Novikov, I. D. Vatnik

引用次数: 0

On the Plasma Phase Transition in Multiply Ionized Warm Dense Cesium 多层电离热致密铯的等离子体相变研究

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-08-22 DOI: 10.1134/S0021364025607389

A. A. Filatkin, I. M. Saitov, G. E. Norman

引用次数: 0

Bright–Dark Light Bullets Under Third Harmonic Generation Conditions 三次谐波产生条件下的明暗光弹

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-08-22 DOI: 10.1134/S002136402660165X

S. V. Sazonov

引用次数: 0

Dependence of the Formation of the Gamma Spectrum of the 137Cs Radionuclide on the Thickness of the Material Layer: GEANT4 Simulation 137Cs放射性核素γ谱的形成与材料层厚度的关系：GEANT4模拟

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-08-22 DOI: 10.1134/S0021364026606962

V. O. Solov’ev, A. V. Puchkov, G. V. Zhukov, E. Yu. Yakovlev

引用次数: 0

Relationship Between the Magnetoelectric Effect and Local Magnetic and Electric Moments in Paramagnetic Terbium Langasite 顺磁性碲Langasite中磁电效应与局部磁矩和电矩的关系

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-08-22 DOI: 10.1134/S0021364026601260

A. Yu. Tikhanovskii, V. Yu. Ivanov, A. M. Kuzmenko, A. A. Mukhin

{"title":"Relationship Between the Magnetoelectric Effect and Local Magnetic and Electric Moments in Paramagnetic Terbium Langasite","authors":"A. Yu. Tikhanovskii, V. Yu. Ivanov, A. M. Kuzmenko, A. A. Mukhin","doi":"10.1134/S0021364026601260","DOIUrl":"10.1134/S0021364026601260","url":null,"abstract":"Magnetic field-induced anisotropic electric polarization has been detected in langasite single crystals doped with magnetic rare-earth Tb ions (5%). This polarization strongly depends on the field magnitude and orientation. A sharp change in the polarization sign has been observed upon magnetic field rotation in the basal plane, which correlates with the reversal of the anisotropic (Ising) magnetic moments of Tb3+ ions along local two-fold axes. A microscopic approach has been proposed suggesting the superposition of local polarizations of single-ion origin in three nonequivalent sites of Tb ions. This has allowed us to identify the relationship between macroscopic and local polarizations and to establish that the latter is almost orthogonal to the Ising axis of Tb ions in the corresponding site, linearly depends on the magnetic field (upon Tb moment saturation), and changes sign upon the reversal of Tb moments. The parameters of the magnetoelectric interaction have been determined, which have made it possible to estimate the local electric dipole moment of ~0.1 D per Tb ion in a field of 5 T.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"124 1","pages":"49 - 57"},"PeriodicalIF":1.1,"publicationDate":"2026-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364026601260.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807419","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