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Searching for novel spin caloric effects in antiferromagnets we study the properties of thermally activated magnons in the presence of an external spin current and temperature gradient. We predict the spin Peltier effect -- generation of a…

介观与纳米尺度物理 · 物理学 2018-07-04 Olena Gomonay , Kei Yamamoto , Jairo Sinova

We investigate the relation between thermal spin-transfer torque (TSTT) and the spin-dependent Seebeck effect (SDSE), which produces a spin current when a temperature gradient is applied across a metallic ferromagnet, in nanopillar metallic…

介观与纳米尺度物理 · 物理学 2014-10-21 J. Flipse , F. K. Dejene , B. J. van Wees

Creating, manipulating and detecting spin polarized carriers are the key elements of spin based electronics. Most practical devices use a perpendicular geometry in which the spin currents, describing the transport of spin angular momentum,…

介观与纳米尺度物理 · 物理学 2012-01-17 Abraham Slachter , Frank Lennart Bakker , Jean-Paul Adam , Bart Jan van Wees

We observe amplification of spin-wave packets propagating along a film of yttrium iron garnet (YIG) subject to a transverse temperature gradient. The amplification is attributed to a spin-transfer thermal torque created by spin currents…

其他凝聚态物理 · 物理学 2011-07-14 E. Padrón-Hernández , A. Azevedo , S. M. Rezende

We present a study of the transport properties of thermally generated spin currents in an insulating ferrimagnetic-antiferromagnetic-ferrimagnetic trilayer over a wide range of temperature. Spin currents generated by the spin Seebeck effect…

We theoretically investigate a pure spin Hall current driven by a longitudinal temperature gradient, i.e., the spin Nernst effect (SNE), in a paramagnetic state of a collinear antiferromagnetic insulator with the Dzyaloshinskii-Moriya…

介观与纳米尺度物理 · 物理学 2018-07-23 Yinhan Zhang , Satoshi Okamoto , Di Xiao

We theoretically propose a nonreciprocal spin Seebeck effect, i.e., nonreciprocal spin transport generated by a temperature gradient, in antiferromagnetic insulators with broken inversion symmetry. We find that nonreciprocity in…

介观与纳米尺度物理 · 物理学 2018-07-16 Rina Takashima , Yuki Shiomi , Yukitoshi Motome

Recently, Seebeck coefficients of ferromagnetic conductors are found to be spin-dependent. However straightforward method of accurately determining its spin polarization is still to be developed. Here, we have derived a linear dependence of…

材料科学 · 物理学 2015-05-29 C. Fang , C. H. Wan , Z. H. Yuan , H. Wu , Q. T. Zhang , L. B. Mo , X. Zhang , X. F. Han

The spin Nernst effect, an antisymmetric response of a spin current to a temperature gradient, has attracted attention as spin transport phenomenon arising from the topologically nontrivial band structure of carriers. This effect can occur…

强关联电子 · 物理学 2025-08-12 Shinnosuke Koyama , Joji Nasu

We theoretically study the optical generation of dc spin current (i.e., a spin-current solar cell) in ordered antiferromagnetic and ferrimagnetic insulators, motivated by a recent study on the laser-driven spinon spin current in…

介观与纳米尺度物理 · 物理学 2019-12-16 Hiroaki Ishizuka , Masahiro Sato

We show that a temperature gradient induces an ac electric current in multiferroic insulators when the sample is embedded in a circuit. We also show that a thermal gradient can be used to move magnetic skyrmions in insulating chiral…

材料科学 · 物理学 2014-05-12 Shi-Zeng Lin , Cristian D. Batista , Charles Reichhardt , Avadh Saxena

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 consider spin-polarized transport in a quantum spin Hall antidot system coupled to normal leads. Due to the helical nature of the conducting edge states, the screening potential at the dot region becomes spin dependent without external…

介观与纳米尺度物理 · 物理学 2014-09-04 Sun-Yong Hwang , Rosa Lopez , Minchul Lee , David Sanchez

Several experimental efforts such as material investigation and structure improvement have been made recently to find a large anomalous Nernst effect in ferromagnetic metals. Here, we develop a theory of spin transport driven by the…

介观与纳米尺度物理 · 物理学 2016-08-17 Tomohiro Taniguchi

Central focus of spintronics is concentrated on generation of pure spin current and associated spin torque. Pure spin current can be generated by spin Hall effect in heavy metals by passing charge current. By spin Seebeck effect pure spin…

介观与纳米尺度物理 · 物理学 2018-11-16 Arnab Bose , Swapnil Bhuktare , Hanuman Singh , Venu Gopal Achanta , Ashwin Tulapurkar

We theoretically investigate the intrinsic (impurity-independent) spin Nernst effect (SNE), a spin current generation perpendicular to temperature gradients, in spin-triplet superconductors. We show that, in these systems, the SNE consists…

超导电性 · 物理学 2025-12-24 Taiki Matsushita , Youichi Yanase , Takeshi Mizushima , Satoshi Fujimoto , Ilya Vekhter

It is shown that the flow of electric current in an altermagnet results in the formation of a homogeneous electron spin orientation in the sample. The spin of the conduction electrons generated in altermagnets with $d$-wave spin-momentum…

介观与纳米尺度物理 · 物理学 2025-03-18 L. E. Golub , L. Šmejkal

A triplon refers to a fictitious particle that carries angular momentum $S = 1$ corresponding to the elementary excitation in a broad class of quantum dimerized spin systems. Such systems without magnetic order have long been studied as a…

We demonstrate a room temperature spin dynamo where the precession of electron spins in ferromagnets driven by microwaves manifests itself in a collective way by generating d.c. currents. The current/power ratio is at least three orders of…

材料科学 · 物理学 2007-05-23 Y. S. Gui , N. Mecking , X. Zhou , G. Williams , C. -M. Hu

Spin and valley dependent anomalous Nernst effect are analyzed for monolayer MoS2 and other group-VI dichalcogenides. We find that pure spin and valley currents can be generated perpendicular to the applied thermal gradient in the plane of…

介观与纳米尺度物理 · 物理学 2016-01-19 X. -Q. Yu , Z. -G. Zhu , G. Su , A. -P. Jauho