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Related papers: Spin torque due to non-uniform Rashba spin orbit e…

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We study the effects of Rashba spin-orbit coupling on the spin torque induced by spin waves, which are the plane wave dynamics of magnetization. The spin torque is derived from linear response theory, and we calculate the dynamic spin…

Materials Science · Physics 2015-12-21 Nobuyuki Umetsu , Daisuke Miura , Akimasa Sakuma

The emergent induction of spiral magnets that was proposed [Jpn. J. Appl. Phys. 58, 120909 (2019)] and recently demonstrated [Nature 586, 232 (2020)] is shown to be further extended by a comprehensive treatment of the Rashba spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2021-03-05 Jun'ichi Ieda , Yuta Yamane

In a ferromagnetic heterostructure, the interplay between a Rashba spin-orbit coupling and an exchange field gives rise to a current-driven spin torque. In a realistic device setup, we investigate the Rashba spin torque in the diffusive…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Christian Ortiz Pauyac , Xuhui Wang , Mairbek Chshiev , Aurelien Manchon

We use a perturbative approach to study the effects of interfacial spin-orbit coupling in magnetic multilayers by treating the two-dimensional Rashba model in a fully three-dimensional description of electron transport near an interface.…

Mesoscale and Nanoscale Physics · Physics 2017-10-04 Kyoung-Whan Kim , Kyung-Jin Lee , Jairo Sinova , Hyun-Woo Lee , M. D. Stiles

We study the spatial distribution of spin torque induced by a strong Rashba spin-orbit coupling (RSOC) in a ferromagnetic (FM) metal layer, using the Keldysh non-equilibrium Green's function method. In the presence of the s-d interaction…

Mesoscale and Nanoscale Physics · Physics 2012-02-27 N. L. Chung , M. B. A. Jalil , S. G. Tan

We study the spin relaxation torque in nonmagnetic or ferromagnetic metals with nonuniform spin-orbit coupling within the Keldysh Green's function formalism. In non-magnet, the relaxation torque is shown to arise when the spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 Kazuhiro Tsutsui , Akihito Takeuchi , Gen Tatara , Shuichi Murakami

The spin orbit coupling spin torque consists of the field-like [REF: S.G. Tan et al., arXiv:0705.3502, (2007).] and the damping-like terms [REF: H. Kurebayashi et al., Nature Nanotechnology 9, 211 (2014).] that have been widely studied for…

Mesoscale and Nanoscale Physics · Physics 2015-11-16 Seng Ghee Tan , Mansoor B. A. Jalil

Quantum interference effects in rings provide suitable means for controlling spin at mesoscopic scales. Here we apply such control mechanisms to coherent spin-dependent transport in one- and two-dimensional rings subject to Rashba…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Diego Frustaglia , Klaus Richter

Magnetization dynamics in a ferromagnet can induce a spin-dependent electric field through spin motive force. Spin current generated by the spin-dependent electric field can in turn modify the magnetization dynamics through spin-transfer…

Mesoscale and Nanoscale Physics · Physics 2012-05-29 Kyoung-Whan Kim , Jung-Hwan Moon , Kyung-Jin Lee , Hyun-Woo Lee

Current-driven magnetization dynamics of single ferromagnets in heavy metal/ferromagnet bilayers has been recently realized. In this work, spin torque induced by so-called Rashba spin-orbit coupling and spin Hall effect are considered…

Mesoscale and Nanoscale Physics · Physics 2012-04-24 Aurelien Manchon

In systems with small spin-orbit coupling, current-induced torques on the magnetization require inhomogeneous magnetization textures. For large spin-orbit coupling, such torques exist even without gradients in the magnetization direction.…

Mesoscale and Nanoscale Physics · Physics 2013-05-30 E. van der Bijl , R. A. Duine

Spin-orbit torque in magnetic domain walls was investigated by solving the Pauli-Schr\"{o}dinger equation for the itinerant electrons. The Rashba interaction considered is derived from the violation of inversion symmetry at interfaces…

Mesoscale and Nanoscale Physics · Physics 2019-08-21 D. Wang , Yan Zhou

Magnetization dynamics in single-domain ferromagnets can be triggered by charge current if spin-orbit coupling is sufficiently strong. We apply functional Keldysh theory to investigate Rashba spin-orbit torques in metallic two-dimensional…

Materials Science · Physics 2015-07-14 A. Qaiumzadeh , R. A. Duine , M. Titov

In a two-dimensional ferromagnetic metal layer lacking inversion symmetry, the itinerant electrons mediate the interaction between the Rashba spin-orbit interaction and the ferromagnetic order parameter, leading to a Rashba spin torque…

Materials Science · Physics 2011-11-24 Xuhui Wang , Aurelien Manchon

We provide a general procedure to calculate the current-induced spin-transfer torque which acts on a general steep magnetic texture due to the exchange interaction with an applied spin-polarized current. As an example, we consider a…

Mesoscale and Nanoscale Physics · Physics 2016-01-20 Martin Stier , Michael Thorwart

We investigate the current-induced spin-orbit torque in antiferromangnetic materials in the presence of Rashba spin orbit coupling using both the linear response theory and the non-equilibrium Green's function technique implemented on a…

Mesoscale and Nanoscale Physics · Physics 2016-06-15 Hamed Ben Mohamed Saidaoui , Aurelien Manchon

Using a tight-biding model, we elaborate that the previously discovered out-of-plane polarized helical edge spin current caused by Rashba spin-orbit coupling can be attributed to the fact that in a strip geometry, a positive momentum…

Mesoscale and Nanoscale Physics · Physics 2021-11-10 Wei Chen , Manfred Sigrist

The control of the magnetism of ultra-thin ferromagnetic layers using an electric field rather than a current, if large enough, would lead to many technologically important applications. To date, while it is usually assumed the changes in…

Materials Science · Physics 2013-12-05 Stewart E. Barnes , Jun'ichi Ieda , Sadamichi Maekawa

We calculate orbital spin-dependent magnetization in a two-dimensional electron gas with spin-orbit interaction of Rashba type. Such an orbital magnetization is admitted by the time-reversal symmetry of the system, and gives rise to spin…

Mesoscale and Nanoscale Physics · Physics 2016-11-09 A. Dyrdał , V. K. Dugaev , J. Barnaś

Current induced magnetization switching by spin-orbit torques offers an energy-efficient means of writing information in heavy metal/ferromagnet (FM) multilayer systems. The relative contributions of field-like torques and damping-like…

Mesoscale and Nanoscale Physics · Physics 2015-10-12 Meiyin Yang , Kaiming Cai , Hailang Ju , Kevin William Edmonds , Guang Yang , Shuai Liu , Baohe Li , Bao Zhang , Yu Sheng , Shouguo Wang , Yang Ji , Kaiyou Wang
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