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We theoretically propose a method of rectifying spin current with a linearly-polarized electromagnetic wave in inversion-asymmetric magnetic insulators. To demonstrate the proposal, we consider quantum spin chains as a simple example; these…

强关联电子 · 物理学 2019-05-22 Hiroaki Ishizuka , Masahiro Sato

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 study the nonlinear magnon spin current induced by an ac electric field under light irradiation in collinear antiferromagnets with broken inversion symmetry. For linearly polarized light, we find that a dc spin current appears through…

强关联电子 · 物理学 2023-02-03 Kosuke Fujiwara , Sota Kitamura , Takahiro Morimoto

The generation of collinear spin current (CSC), where both the propagation direction and spin-polarized direction aligned perpendicularly to the applied charge current, is crucial for efficiently manipulating systems with perpendicular…

材料科学 · 物理学 2025-10-21 M. Q. Dong , Zhi-Xin Guo , Xin-Gao Gong

Photovoltaic effect, e.g., solar cells, converts light into DC electric current. This phenomenon takes place in various setups such as in noncentrosymmetric crystals and semiconductor pn junctions. Recently, we proposed a theory for…

强关联电子 · 物理学 2020-10-23 Masahiro Sato , Hiroaki Ishizuka

Spin-polarized dc electric current flowing into a magnetic layer can induce precession of the magnetization at a frequency that depends on current. We show that addition of an ac current to this dc bias current results in a frequency…

其他凝聚态物理 · 物理学 2009-11-10 M. R. Pufall , W. H. Rippard , S. Kaka , T. J. Silva , S. E. Russek

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

Spin current generation through non-relativistic spin splittings, found in uncompensated magnets and d-wave altermagnets, is desirable for low-power spintronics. Such spin currents, however, are symmetry forbidden in conventional collinear…

材料科学 · 物理学 2025-12-04 Sajjan Sheoran , Pratibha Dev

We consider the current-induced dynamics of insulating antiferromagnets in a spin Hall geometry. Sufficiently large in-plane currents perpendicular to the N\'{e}el order trigger spontaneous oscillations at frequencies between the acoustic…

介观与纳米尺度物理 · 物理学 2016-05-23 Ran Cheng , Di Xiao , Arne Brataas

We investigate the spin-pumping-induced electric current on the surface of a three-dimensional topological insulator hybridized with a ferromagnet, namely, ferromagnetic topological insulator. In order to do this, we establish the…

介观与纳米尺度物理 · 物理学 2020-05-29 Yusuke Hama , Kentaro Nomura

Electronic spin current is convertible to magnonic spin current via the creation or annihilation of thermal magnons at the interface of a magnetic insulator and a metal with a strong spin-orbital coupling. So far this phenomenon was…

In spinelectronics the spin degree of freedom is used to transmit and store information. Ideally this occurs without net charge currents in order to avoid energy dissipation due to Joule heating. To this end the ability to create pure spin…

介观与纳米尺度物理 · 物理学 2014-10-27 Dahai Wei , Martin Obstbaum , Christian Back , Georg Woltersdorf

We propose a realization of the electric-field-induced antiferromagnetic resonance. We consider three-dimensional antiferromagnetic insulators with spin-orbit coupling characterized by the existence of a topological term called the $\theta$…

强关联电子 · 物理学 2018-06-07 Akihiko Sekine , Takahiro Chiba

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

It is shown that in a heterostructure where screening is eliminated, the Amp\'ere-Maxwell law of electrodynamics implies that a dc or ac spinomotive force can be inudced with a time rate of change of a transverse electric field, and the…

材料科学 · 物理学 2007-05-23 Chia-Ren Hu

Dynamic magnetic textures may transfer the angular moment from the varying in time antiferromagnetic order to spins of conduction electrons. Due to the spin orbit coupling (SOC) these spin excitations can induce the electric current of…

介观与纳米尺度物理 · 物理学 2023-11-15 A. G. Mal'shukov

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

We theoretically demonstrate dc and ac electric voltage generation due to spinmotive forces originating from domain wall motion and magnetic resonance, respectively, in two-sublattice antiferromagnets. Our theory accounts for the canting…

介观与纳米尺度物理 · 物理学 2016-06-01 Yuta Yamane , Jun'ichi Ieda , Jairo Sinova

Magnetic skyrmions are nanoscale spin whirlpools that promise breakthroughs in future spintronic applications. Controlled generation of magnetic skyrmions by electric current is crucial for this purpose. While previous studies have…

材料科学 · 物理学 2022-11-29 Xuebing Zhao , Jin Tang , Ke Pei , Weiwei Wang , Shi-Zeng Lin , Haifeng Du , Mingliang Tian , Renchao Che

A general expression of the current induced spin torque in a magnetic layered structure in the presence of external dc or ac voltages is derived in the framework of the scattering matrix approach. A detailed analysis is performed for a…

介观与纳米尺度物理 · 物理学 2010-10-05 F. Romeo , R. Citro
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