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The magnetic field which induced by the thermo-electric current in metals was detected and measured using of a flux-gate magnetometer. It is shown that the application of a temperature gradient on a metal rod gives rise to a circulating…

综合物理 · 物理学 2014-03-11 B. V. Vasiliev

The direct electrical method was used to study the behavior of the spin Hall effect in a magnetic field perpendicular to the injection current in aluminum samples with resistivities that differed by two orders of magnitude at a temperature…

介观与纳米尺度物理 · 物理学 2023-12-15 Yu. N. Chiang , M. O. Dzyuba

We study the effect of thermal fluctuations in a recently proposed protocol for transmission of unknown quantum states through quantum spin chains. We develop a low temperature expansion for general spin chains. We then apply this formalism…

量子物理 · 物理学 2009-11-10 Abolfazl Bayat , Vahid Karimipour

We investigate electronic thermal rectification in ferromagnetic insulator-based superconducting tunnel junctions. Ferromagnetic insulators coupled to superconductors are known to induce sizable spin splitting in the superconducting density…

介观与纳米尺度物理 · 物理学 2020-05-13 F. Giazotto , F. S. Bergeret

The spin Seebeck effect is a spin-motive force generated by a temperature gradient in a ferromagnet that can be detected via normal metal contacts through the inverse spin Hall effect [K. Uchida {\it et al.}, Nature {\bf 455}, 778-781…

材料科学 · 物理学 2010-09-07 Jiang Xiao , Gerrit E. W. Bauer , Ken-ichi Uchida , Eiji Saitoh , Sadamichi Maekawa

We demonsrtate electrical spin injection and detection in $n$-type Ge ($n$-Ge) at room temperature using four-terminal nonlocal spin-valve and Hanle-effect measurements in lateral spin-valve (LSV) devices with Heusler-alloy Schottky tunnel…

We use the Boltzmann transport theory in the relaxation time approximation to describe the thermal transport of spin waves in a ferromagnet. By treating spin waves as magnon excitations we are able to compute analytically and numerically…

材料科学 · 物理学 2018-09-05 Vittorio Basso , Elena Ferraro , Marco Piazzi

We study coherent spin transport through helical edge states of topological insulator tunnel-coupled to metallic leads. We demonstrate that unpolarized incoming electron beam acquires finite polarization after transmission through such a…

介观与纳米尺度物理 · 物理学 2021-11-10 R. A. Niyazov , D. N. Aristov , V. Yu. Kachorovskii

We have implemented three approaches to describe the thermodynamic properties of ferrimagnetic ($S=5/2, s=2$) spin chains. The application of cumulant expansion has been generalized to the ferrimagnetic chain in the presence of an external…

强关联电子 · 物理学 2009-11-11 J. Abouie , S. A. Ghasemi , A. Langari

We propose a two-terminal spin-orbit interferometer with a hot molecule inserted in one of its arms to generate pure spin currents. Local heating is achieved by coupling the vibrational modes of the molecule to a third (phononic) reservoir.…

介观与纳米尺度物理 · 物理学 2013-10-22 Sun-Yong Hwang , Jong Soo Lim , Rosa Lopez , Minchul Lee , David Sanchez

The spin and charge transport in materials with spin-dependent conductivity has been studied. It was shown that there is a charge accumulation along spin diffusion in a ferromagnetic metal, which causes a shortening of the spin diffusion…

介观与纳米尺度物理 · 物理学 2020-10-05 Vadym Zayets

Magnon band structures in altermagnets are characterized by an energy splitting of modes with opposite chirality, even in the absence of applied external fields and relativistic effects, due to an anisotropy in the Heisenberg exchange…

材料科学 · 物理学 2024-06-03 Markus Weißenhofer , Alberto Marmodoro

We have demonstrated the electrical generation and detection of spin polarization by the spin Hall effect (SHE) in platinum. The experiment was performed in a non-local geometry without the use of ferromagnetic materials or magnetic field.…

介观与纳米尺度物理 · 物理学 2010-06-11 Chee Weng Koong , Berthold-Georg Englert , Christian Miniatura , N. Chandrasekhar

We provide a theoretical description of diffusive charge and spin transport in hybrid devices containing altermagnets. Based on recently derived drift--diffusion equations for coupled charge and spin dynamics and general boundary…

介观与纳米尺度物理 · 物理学 2026-03-17 Nicolás Sigales , Tim Kokkeler , Gonzalo de Polsi , Sebastian Bergeret

A diathermal wall between two heat baths at different temperatures can be mimicked by a layer of independent spin pairs with some internal energy and where each spin $\sigma_a$ is flipped by thermostat $a$ ($a=1,2$). The transition rates…

统计力学 · 物理学 2015-05-06 Françoise Cornu , Michel Bauer

As a non-magnetic heavy metal is attached to a ferromagnet, a vertically flowing heat-driven spin current is converted to a transverse electric voltage, which is known as the longitudinal spin Seebeck effect (SSE). If the ferromagnet is a…

介观与纳米尺度物理 · 物理学 2015-06-23 Yadong Xu , Bowen Yang , Chi Tang , Zilong Jiang , Michael Schneider , Renu Whig , Jing Shi

The theoretical explanation for the chiral-induced spin selectivity effect, in which electrons' passage through a chiral system depends on their spin and the handedness of the system, remains vague. Although most experimental work was…

介观与纳米尺度物理 · 物理学 2022-03-01 Tapan Kumar Das , Francesco Tassinari , Ron Naaman , Jonas Fransson

We study spin-dependent heat transport in quantum gases, focusing on transport phenomena related to pure spin currents and spin-dependent temperatures. Using the Boltzmann equation, we compute the coupled spin and heat transport…

量子气体 · 物理学 2015-04-08 Clement H. Wong , H. T. C. Stoof , R. A. Duine

It is widely believed that temperature gradient does not induce electric field in the superconductor and consequently that thermoelectric effects do not exist, or are negligible in these materials. This statement is correct only as far as…

超导电性 · 物理学 2007-05-23 Jan Kolacek , Tzong-Jer Yang

The interface between a ferro-/ferrimagnetic insulator and a normal metal can support spin currents polarized collinear with and perpendicular to the magnetization direction. The flow of angular momentum perpendicular to the magnetization…

介观与纳米尺度物理 · 物理学 2023-01-23 David A. Reiss , Piet W. Brouwer
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