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相关论文: Spin-orbit torques in bulk collinear antiferromagn…

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Spin-orbit torque (SOT) presents a promising avenue for energy-efficient spintronics devices, surpassing the limitations of spin transfer torque. While extensively studied in heavy metals, SOT in antiferromagnetic quantum materials remains…

Antiferromagnets are outstanding candidates for the next generation of spintronic applications, with great potential for downscaling and decreasing power consumption. Recently, the manipulation of bulk properties of antiferromagnets has…

应用物理 · 物理学 2020-02-05 X. H. Liu , K. W. Edmonds , Z. P. Zhou , K. Y. Wang

We use \textit{ab-initio} calculations to investigate spin-orbit torques (SOTs) in FeRh(001) deposited on W(100). Since FeRh undergoes a ferromagnetic-antiferromagnetic phase transition close to room temperature, we consider both phases of…

材料科学 · 物理学 2021-02-23 Frank Freimuth , Stefan Blügel , Yuriy Mokrousov

We suggest coherent switching of canted antiferromagnetic (AFM) spins using spin-orbit torque (SOT) in small magnet. The magnetic system of orthoferrite features biaxial easy anisotropy and the Dzyaloshinskii Moriya interaction, which is…

材料科学 · 物理学 2021-08-18 T. H. Kim , S. Hwang , S. Y. Hamh , S. H. Yoon , S. H. Han , B. K. Cho

The effect of spin currents on the magnetic order of insulating antiferromagnets (AFMs) is of fundamental interest and can enable new applications. Toward this goal, characterizing the spin-orbit torques (SOT) associated with AFM/heavy…

介观与纳米尺度物理 · 物理学 2022-06-22 Egecan Cogulu , Hantao Zhang , Nahuel N. Statuto , Yang Cheng , Fengyuan Yang , Ran Cheng , Andrew D. Kent

Spin-orbit torque (SOT)-induced magnetization switching shows promise for realizing ultrafast and reliable spintronics devices. Bipolar switching of perpendicular magnetization via SOT is achieved under an in-plane magnetic field collinear…

材料科学 · 物理学 2016-05-04 Shunsuke Fukami , Chaoliang Zhang , Samik DuttaGupta , Hideo Ohno

Current-induced spin torques are of great interest to manipulate the orientation of nanomagnets without applying external magnetic fields. They find direct application in non-volatile data storage and logic devices, and provide insight into…

Electric control of N\'eel vector is a central task of antiferromagnetic (AFM) spintronics. The major scheme so far relies on the linear N\'eel torque, which however is restricted to AFMs with broken inversion symmetry. Here, we propose a…

材料科学 · 物理学 2025-06-13 Jin Cao , Weikang Wu , Huiying Liu , Shen Lai , Cong Xiao , X. C. Xie , Shengyuan A. Yang

An antiferromagnet is a promising material for spin-orbit torque generation. Earlier studies of the spin-orbit torque in an antiferromagnet are limited to collinear spin configurations. We calculate the spin-orbit torque in an…

介观与纳米尺度物理 · 物理学 2018-04-04 Suik Cheon , Hyun-Woo Lee

We formulate and quantify the spin-orbit torque (SOT) in intrinsic antiferromagnetic topological insulator $\rm MnBi_2Te_4$ of a few septuple-layer thick, which exhibits conspicuous layer-resolved characteristics. Contrary to known…

介观与纳米尺度物理 · 物理学 2024-03-27 Junyu Tang , Ran Cheng

Antiferromagnets (AFMs) exhibit spin arrangements with no net magnetization, positioning them as promising candidates for spintronics applications. While electrical manipulation of the single-crystal AFMs, composed of periodic spin…

Interplay between magnetic ordering and topological electrons not only enables new topological phases but also underpins electrical control of magnetism. Here we extend the Kane-Mele model to include the exchange coupling to a collinear…

介观与纳米尺度物理 · 物理学 2025-08-22 Junyu Tang , Hantao Zhang , Ran Cheng

An applied electric current through a space-inversion asymmetric magnet induces spin-orbit torques (SOTs) on the magnetic moments, which holds much promise for future memory devices. We discuss general Green's function expressions suitable…

材料科学 · 物理学 2014-11-19 Frank Freimuth , Stefan Blügel , Yuriy Mokrousov

The spin-orbit torque (SOT) in a compensated ferrimagnetic Weyl semimetal, ${\rm Ti}_{2}{\rm MnAl}$, is studied by the linear response theory. We elucidate that the SOT driven by all the occupied electronic states is present in magnetic…

介观与纳米尺度物理 · 物理学 2025-06-18 Tomonari Meguro , Akihiro Ozawa , Koji Kobayashi , Yasufumi Araki , Kentaro Nomura

Current induced spin-orbit torques (SOTs) in Fe/Pt bilayers have been investigated utilizing the spin-orbit torque ferromagnetic resonance (SOT-FMR) measurement. Characterization of thin films with different thicknesses indicates existence…

应用物理 · 物理学 2021-09-16 Hongshi Li , Mahdi Jamali , Delin Zhang , Xuan Li , Jian-Ping Wang

We report that synthetic antiferromagnets (SAFs) can be efficiently switched by spin-orbit torques (SOTs) and the switching scheme does not obey the usual SOT switching rule. We show that both the positive and negative spin Hall angle…

介观与纳米尺度物理 · 物理学 2017-04-04 Chong Bi , Hamid Almasi , Kyle Price , Ty Newhouse-Illige , Meng Xu , Shane R. Allen , Xin Fan , Weigang Wang

Realization of efficient spin-orbit torque switching of the N\'eel vector in insulating antiferromagnets is a challenge, often complicated by spurious effects. Quantifying the spin-orbit torques in antiferromagnet/heavy metal…

While current-induced spin-orbit torques (SOTs) have been extensively studied in ferromagnets and antiferromagnets, ferrimagnets have been less studied. Here we report the presence of enhanced spin-orbit torques resulting from negative…

材料科学 · 物理学 2017-05-24 Rahul Mishra , Jiawei Yu , Xuepeng Qiu , M. Motapothula , T. Venkatesan , Hyunsoo Yang

Spin current and spin torque generation through the spin-orbit interactions in solids, of bulk or interfacial origin, is at the heart of spintronics research. The realization of spin-orbit torque (SOT) driven magnetic dynamics and switching…

介观与纳米尺度物理 · 物理学 2021-03-22 Minh-Hai Nguyen , Chi-Feng Pai

In recent years, there has been a growing interest in spin-orbit torques (SOTs) for manipulating the magnetization in nonvolatile magnetic memory devices. SOTs rely on the spin-orbit coupling of a nonmagnetic material coupled to a…

介观与纳米尺度物理 · 物理学 2020-11-19 Jan Hidding , Marcos H. D. Guimarães
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