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We show that in the linear response approximation only entropy provides coupling between thermal and electric phenomena. The dissipationless quantum currents -- magnetization, superconducting, persistent and topological edge currents -- do…

综合物理 · 物理学 2022-03-24 Andrei Sergeev , Michael Reizer

We present the theoretical description for a class of experimental setups that measure quantum Hall coefficients in ferromagnet-topological insulator-ferromagnet (FM-TI-FM) junctions. We predict that varying the magnetization direction in…

介观与纳米尺度物理 · 物理学 2015-06-11 A. L. Chudnovskiy , V. Kagalovsky

The Mott relation between the electrical and thermoelectric transport coefficients normally holds for phenomena involving scattering. However, the anomalous Hall effect (AHE) in ferromagnets may arise from intrinsic spin-orbit interaction.…

介观与纳米尺度物理 · 物理学 2008-09-12 Yong Pu , Daichi Chiba , Fumihiro Matsukura , Hideo Ohno , Jing Shi

We investigate the electric and thermal transport properties in a disordered Weyl ferromagnet on an equal footing by using the Keldysh formalism in curved spacetime. In particular, we calculate the anomalous thermal Hall conductivity, which…

介观与纳米尺度物理 · 物理学 2017-04-06 Atsuo Shitade

Thermoelectric effects through a serial double quantum dot system weakly coupled to ferromagnetic leads are analyzed. Formal expressions of electrical conductance, thermal conductance, and thermal coefficient are obtained by means of…

介观与纳米尺度物理 · 物理学 2012-04-18 M. Bagheri Tagani , H. Rahimpour Soleimani

In this review, we discuss effects of quantum gravity on black hole physics. After a brief review of the origin of the minimal observable length from various quantum gravity theories, we present the tunneling method. To incorporate quantum…

广义相对论与量子宇宙学 · 物理学 2014-10-21 Deyou Chen , Houwen Wu , Haitang Yang , Shuzheng Yang

We report results of a magneto-transport study on thin films of the topological semi-metal candidate PdSb$_{2}$ (PS). We observe a positive correction to magneto-conductivity at low temperatures, which is a signature of weak…

强关联电子 · 物理学 2022-02-04 Shama , Aastha Vasdev Dinesh Kumar , Goutam Sheet , Yogesh Singh

We investigate transverse magnetic heat transport on the surface of a topological insulator on which a ferromagnet is attached. We present general expressions of the Nernst coefficient and the thermal Hall conductivity, which are reduced to…

介观与纳米尺度物理 · 物理学 2015-05-27 Takehito Yokoyama , Shuichi Murakami

We propose a theory for thermal Hall transport mediated by magnons to address the impact of their damping resulting from magnon-magnon interactions in insulating magnets. This phenomenon is anticipated to be particularly significant in…

强关联电子 · 物理学 2024-07-10 Shinnosuke Koyama , Joji Nasu

The quantum Hall effect in a 2D electron system expresses a topological invariant, leading to a quantized conductivity. The thermal Hall and thermoelectric Nernst conductances in two dimensions are also reported to be quantized in specific…

介观与纳米尺度物理 · 物理学 2021-03-30 Jonathan Noky , Johannes Gooth , Yan Sun , Claudia Felser

Electron transport in nonideal quantum wells (QW) with large-scale variations of energy levels is studied when two subbands are occupied. Although the mean fluctuations of these two levels are screened by the in-plane redistribution of…

介观与纳米尺度物理 · 物理学 2009-10-31 O. G. Balev , F. T. Vasko , Flavio Aristone , Nelson Studart

We consider a quantum Hall system with an antidot acting as an energy dependent scatterer. In the purely charge case, we find deviations from the Wiedemann-Franz law that take place in the nonlinear regime of transport. We also discuss…

介观与纳米尺度物理 · 物理学 2015-05-14 Rosa Lopez , Sun-Yong Hwang , David Sanchez

We review recent developments in nonlinear quantum transport through nanostructures and mesoscopic systems driven by thermal gradients or in combination with voltage biases. Low-dimensional conductors are excellent platforms to analyze both…

介观与纳米尺度物理 · 物理学 2016-11-14 David Sanchez , Rosa Lopez

We have computed the charge and heat transport coefficients of hot QCD matter by solving the relativistic Boltzmann transport equation using the BGK model approximation with a modified collision integral in the weak magnetic field regime.…

高能物理 - 唯象学 · 物理学 2022-10-28 Anowar Shaikh , Shubhalaxmi Rath , Sadhana Dash , Binata Panda

Theory of weak localization is developed for two-dimensional holes in the presence of in-plane magnetic field. The Zeeman splitting even in the hole momentum results in the spin-dependent phase changing the quantum interference. The…

介观与纳米尺度物理 · 物理学 2022-12-28 M. O. Nestoklon , L. E. Golub

The Seebeck effect and the Nernst effect, which reflect the appearance of electric fields along $x$-axis and along $y$-axis ($E_{x}$ and $E_{y}$), respectively, induced by the thermal gradient along $x$-axis, are studied in the QGP at an…

高能物理 - 唯象学 · 物理学 2021-10-08 He-Xia Zhang , Jin-Wen Kang , Ben-Wei Zhang

We consider the geometric part of the effective action for Fractional Quantum Hall Effect (FQHE). It is shown that accounting for the framing anomaly of the quantum Chern-Simons theory is essential to the obtain correct gravitational linear…

强关联电子 · 物理学 2015-03-26 Andrey Gromov , Gil Young Cho , Yizhi You , Alexander G. Abanov , Eduardo Fradkin

Topological effects arising from the Berry curvature lead to intriguing transport signatures in quantum materials. Two such phenomena are the chiral anomaly and nonlinear Hall effect (NLHE). A unified description of these transport regimes…

材料科学 · 物理学 2026-03-25 Dhruv C. Desai , Lauren A. Tan , Jin-Jian Zhou , Shiyu Peng , Jinsoo Park , Marco Bernardi

By using the generalized Boltzmann equation of transport in nonextensive statistics, we study transport properties of the diffusion flux and the heat flux of charged particles in the weakly ionized plasma with the power-law q-distributions…

等离子体物理 · 物理学 2020-03-06 Yue Wang , Jiulin Du

Nuclear quantum effects (NQE) tend to generate delocalized molecular dynamics due to the inclusion of the zero point energy and its coupling with the anharmonicities in interatomic interactions. Here, we present evidence that NQE often…