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Spin-rotation coupling, which is responsible for angular momentum conversion between the electron spin and rotational deformations of elastic media, is exploited for generating spin current. This method requires neither magnetic moments nor…

介观与纳米尺度物理 · 物理学 2015-06-12 Mamoru Matsuo , Jun'ichi Ieda , Kazuya Harii , Eiji Saitoh , Sadamichi Maekawa

Generation of spin current from lattice distortion dynamics in metals is studied with special attention on the effect of spin-orbit coupling. Treating the lattice distortion by local coordinate transformation, we calculate spin current and…

介观与纳米尺度物理 · 物理学 2018-07-23 Takumi Funato , Hiroshi Kohno

Spin-current generation by fluid motion is theoretically investigated. Based on quantum kinetic theory, the spin-diffusion equation coupled with fluid vorticity is derived. We show that spin currents are generated by the vorticity gradient…

介观与纳米尺度物理 · 物理学 2017-07-12 Mamoru Matsuo , Yuichi Ohnuma , Sadamichi Maekawa

We demonstrate theoretically that a charge current and a spin current are generated by spin dynamics in the presence of spin-orbit interaction in the perturbative regime. We consider a general spin-orbit interaction including the spatially…

介观与纳米尺度物理 · 物理学 2009-11-13 Akihito Takeuchi , Gen Tatara

We demonstrate that spin current can be generated by an ac voltage in a one-channel quantum wire with strong repulsive electron interactions in the presence of a non-magnetic impurity and uniform static magnetic field. In a certain range of…

介观与纳米尺度物理 · 物理学 2007-08-28 Bernd Braunecker , D. E. Feldman , Feifei Li

Spin current--a flow of electron spins without a charge current--is an ideal information carrier free from Joule heating for electronic devices. The celebrated spin Hall effect, which arises from the relativistic spin-orbit coupling,…

强关联电子 · 物理学 2019-10-09 Makoto Naka , Satoru Hayami , Hiroaki Kusunose , Yuki Yanagi , Yukitoshi Motome , Hitoshi Seo

We introduce a previously unknown spin-related transport phenomenon, consisting in a transformation (swapping) of spin currents, in which the spin direction and the direction of flow are interchanged. Swapping is due to the spin-orbit…

其他凝聚态物理 · 物理学 2010-02-26 Maria B. Lifshits , Michel I. Dyakonov

Spin currents in ferromagnets afford diverse functionalities. We evaluate the extrinsic spin Hall effects of magnetic impurity scattering in ferromagnetic metals. We show that spin-dependent scattering can provide a high spin current…

材料科学 · 物理学 2022-07-12 Yuta Yahagi , Daisuke Miura , Akimasa Sakuma

It is proposed that when a charge current circulates in a paramagnetic metal a transverse spin imbalance will be generated, giving rise to a 'spin Hall voltage'. Similarly, that when a spin current circulates a transverse charge imbalance…

强关联电子 · 物理学 2009-10-31 J. E. Hirsch

We study nonequilibrium spin dynamics in differentially rotating systems, deriving an effective Hamiltonian for conduction electrons in the comoving frame. In contrast to conventional spin current generation mechanisms that require…

介观与纳米尺度物理 · 物理学 2025-02-19 Takumi Funato , Shunichiro Kinoshita , Norihiro Tanahashi , Shin Nakamura , Mamoru Matsuo

We investigate electrically-induced spin currents generated by the spin Hall effect in GaAs structures that distinguish edge effects from spin transport. Using Kerr rotation microscopy to image the spin polarization, we demonstrate that the…

介观与纳米尺度物理 · 物理学 2007-05-23 V. Sih , W. H. Lau , R. C. Myers , V. R. Horowitz , A. C. Gossard , D. D. Awschalom

Spin and charge currents can be generated by an ac voltage through a one-channel quantum wire with strong electron interactions in a static uniform magnetic field. In a certain range of low voltages, the spin current can grow as a negative…

介观与纳米尺度物理 · 物理学 2009-11-11 Bernd Braunecker , D. E. Feldman

The spin Hall effect is a phenomenon that an electric field induces a spin Hall current. In this Letter, we examine the inverse effect that, in a ferromagnetic conductor, a charge Hall current is induced by a spin motive force, or a…

介观与纳米尺度物理 · 物理学 2009-11-13 Junya Shibata , Hiroshi Kohno

The spin Hall (SH) effect is a phenomenon in which the spin current flows perpendicular to an applied electric field and causes the spin accumulation at the boundaries. However, in the presence of spin-orbit couplings, the spin current is…

介观与纳米尺度物理 · 物理学 2022-05-13 Atsuo Shitade , Gen Tatara

Spin Hall effects are a collection of relativistic spin-orbit coupling phenomena in which electrical currents can generate transverse spin currents and vice versa. Although first observed only a decade ago, these effects are already…

材料科学 · 物理学 2014-11-13 Jairo Sinova , Sergio O. Valenzuela , J. Wunderlich , C. H. Back , T. Jungwirth

Spin Hall effects are a collection of phenomena, resulting from spin-orbit coupling, in which an electrical current flowing through a sample can lead to spin transport in a perpendicular direction and spin accumulation at lateral…

介观与纳米尺度物理 · 物理学 2007-09-18 Hans-Andreas Engel , Emmanuel I. Rashba , Bertrand I. Halperin

We discuss spontaneous spin current generation from the vacuum by strong electric fields as a result of interplay between the Schwinger mechanism and a spin-orbit coupling. By considering a homogeneous slow strong electric field…

高能物理 - 唯象学 · 物理学 2019-11-20 Xu-Guang Huang , Mamoru Matsuo , Hidetoshi Taya

Charge-to-spin conversion in inhomogeneous systems is studied theoretically. We consider free electrons subject to impurities with spin-orbit interaction and with spatially modulated distribution, and calculate spin accumulation and spin…

介观与纳米尺度物理 · 物理学 2020-09-30 T. Funato , H. Kohno

The inductance of spintronic devices that transport charge neutral spin currents is discussed. It is known that in a media that contains charge neutral spins, a time-varying electric field induces a spin current. We show that since the spin…

介观与纳米尺度物理 · 物理学 2014-03-18 Wei Chen

The spin-orbit interaction is frequently the mechanism by which spin and charge are coupled for spintronic applications. The discovery of spin, a century ago, relied on spin-charge coupling by a magnetic field gradient; this mechanism has…

介观与纳米尺度物理 · 物理学 2023-08-01 Nicholas J. Harmon , Emma Z. Kurth , Dana Coleman , Lana Flanigan
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