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相关论文: Angular dependence of spin-orbit spin transfer tor…

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Motivated by recent experimental studies of thin-film devices containing a single ferromagnetic layer, we develop a quantum kinetic theory of current-induced magnetic torques in Rashba-model ferromagnets. We find that current-induced…

介观与纳米尺度物理 · 物理学 2015-06-03 D. A. Pesin , A. H. MacDonald

Substantial understanding of spin-orbit interactions in heavy-metal (HM)/ferromagnet (FM) heterostructures is crucial in developing spin-orbit torque (SOT) spintronics devices utilizing spin Hall and Rashba effects. Though the study of SOT…

材料科学 · 物理学 2017-09-13 Christian Engel , Sarjoosing Goolaup , Feilong Luo , Wen Siang Lew

The Fermi and Rashba energies of surface states in the Bi_xPb_{1-x}/Ag(111) alloy can be tuned simultaneously by changing the composition parameter x. We report on unconventional Fermi surface spin textures observed by spin and…

Spin valves incorporating perpendicularly magnetized materials are promising structures for memory elements and high-frequency generators. We report the angular dependence of the spin-transfer torque in spin valves with perpendicular…

介观与纳米尺度物理 · 物理学 2015-05-30 Xingtao Jia , Ying Li , Ke Xia , Gerrit E. W. Bauer

Electron transport properties in a parallel double-quantum-dot structure with three-terminals are theoretically studied. By introducing a local Rashba spin-orbit coupling, we find that an incident electron from one terminal can select a…

介观与纳米尺度物理 · 物理学 2009-11-13 Weijiang Gong , Yisong Zheng

The spin transfer torque (STT) can lead to steady precession of magnetization without any external applied field in magnetic spin valve where the magnetic layer have very different spin diffusion length. This effect is associated with an…

材料科学 · 物理学 2009-11-13 O. Boulle , V. Cros , J. Grollier , L. G. Pereira , C. Deranlot , F. Petroff , G. Faini , J. Barnas , A. Fert

A keen interest towards technological implications of spin-orbit driven magnetization dynamics requests a proper theoretical description, especially in the context of a microscopic framework, to be developed. Indeed, magnetization dynamics…

介观与纳米尺度物理 · 物理学 2018-11-22 Anastasiia A. Pervishko , Mikhail I. Baglai , Olle Eriksson , Dmitry Yudin

We describe theoretically the process of multi-beam reflection in a two-dimensional electron system with a lateral potential barrier. Due to spin-orbital interaction, the reflection process leads to the formation of three beams with…

介观与纳米尺度物理 · 物理学 2009-11-10 A. O. Govorov , A. V. Kalameitsev , J. P. Dulka

Spin-orbit (SO) interactions in two dimensional systems split the Fermi surface, and allow for the spatial separation of spin-states via transverse magnetic focusing (TMF). In this work, we consider the case of combined Rashba and Zeeman…

介观与纳米尺度物理 · 物理学 2018-09-12 Samuel S. R. Bladwell , Oleg P. Sushkov

We have considered the effect of different spin-orbit interaction mechanisms on the process of demagnetization under the influence of short-pulse lasers. All-optical magnetization reversal of perpendicularly magnetized thin films can occur…

介观与纳米尺度物理 · 物理学 2016-07-18 Mehrdad Elyasi , Hyunsoo Yang

The presence of spin-orbit coupling affects the spontaneously flowing persistent currents in mesoscopic conducting rings. Here we analyze their dependence on magnetic flux with emphasis on identifying possibilities to prove the presence and…

介观与纳米尺度物理 · 物理学 2007-05-23 Janine Splettstoesser , Michele Governale , Ulrich Zuelicke

We report a theoretical description of novel spin-orbit torque components emerging in two-dimensional Dirac materials with broken inversion symmetry. In contrast to usual metallic interfaces where field-like and damping-like torque…

介观与纳米尺度物理 · 物理学 2023-10-11 Joaquín Medina Dueñas , José H. García , Stephan Roche

We study spin-orbit torques in two dimensional hexagonal crystals such as graphene, silicene, germanene and stanene. The torque possesses two components, a field-like term due to inverse spin galvanic effect and an antidamping torque…

介观与纳米尺度物理 · 物理学 2016-02-17 Hang Li , Xuhui Wang , Aurelien Manchon

We report the angular dependence of magnetoresistance in two-dimensional electron gas at LaAlO$_3$/SrTiO$_3$ interface. We find that this interfacial magnetoresistance exhibits a similar angular dependence to the spin Hall magnetoresistance…

Spin transfer torque in a two dimensional electron gas system without space inversion symmetry was theoretically investigated by solving the Pauli-Schr\"{o}dinger equation for the itinerant electrons inside magnetic domain walls. Due to the…

介观与纳米尺度物理 · 物理学 2020-06-02 D. Wang , Yan Zhou

The ability to switch magnetic elements by spin-orbit-induced torques has recently attracted much attention for a path towards high-performance, non-volatile memories with low power consumption. Realizing efficient spin-orbit-based…

Voltage-driven spin transfer torques in magnetic tunnel junctions provide an outstanding tool to design advanced spin-based devices for memory and reprogrammable logic applications. The non-linear voltage dependence of the torque has a…

介观与纳米尺度物理 · 物理学 2015-06-05 A. Manchon

When a foreign atom is placed on a surface of a metal, the surrounding sea of electrons responds screening the additional charge leading to oscillations or ripples. On surfaces, those electrons are sometimes confined to two-dimensional…

介观与纳米尺度物理 · 物理学 2015-06-04 Samir Lounis , Andreas Bringer , Stefan Blügel

Spin-orbit coupling in inversion-asymmetric magnetic crystals and structures has emerged as a powerful tool to generate complex magnetic textures, interconvert charge and spin under applied current, and control magnetization dynamics.…

介观与纳米尺度物理 · 物理学 2019-10-02 A. Manchon , J. Zelezný , I. M. Miron , T. Jungwirth , J. Sinova , A. Thiaville , K. Garello , P. Gambardella

We study the unique physical properties of topological nodal-loop semimetals protected by the coexistence of time-reversal and inversion symmetries with negligible spin-orbit coupling. We argue that strong correlation effects occur at the…

强关联电子 · 物理学 2017-03-01 Jianpeng Liu , Leon Balents