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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

Antiferromagnets with zero net magnetic moment, strong anti-interference and ultrafast switching speed have potential competitiveness in high-density information storage. Body centered tetragonal antiferromagnet Mn2Au with opposite spin…

材料科学 · 物理学 2018-04-17 X. F. Zhou , J. Zhang , F. Li , X. Z. Chen , G. Y. Shi , Y. Z. Tan , Y. D. Gu , M. S. Saleem , H. Q. Wu , F. Pan , C. Song

In this work, we investigate the steady propagation of 180-degree domain walls (180DWs) of N\'{e}el vectors in thin antiferromagnetic strips under perpendicularly injected spin currents with various polarization orientations. Our results…

介观与纳米尺度物理 · 物理学 2025-06-18 Jiaxin Du , Mei Li , Bin Xi , Xue Zhang , Yi Sun , Chun-Gui Duan , Jie Lu

Antiferromagnetic spintronics focuses on investigating and using antiferromagnets as active elements in spintronics structures. Last decade advances in relativistic spintronics led to the discovery of the staggered, current-induced field in…

介观与纳米尺度物理 · 物理学 2018-04-17 Libor Šmejkal , Tomáš Jungwirth

Altermagnetism has been recently experimentally verified by photoemission mapping of the spin order in momentum space in MnTe and CrSb, which feature two anisotropic sublattices with antiparallel magnetic dipole moments. In this work, we…

Antiferromagnets have a number of favourable properties as active elements in spintronic devices, including ultra-fast dynamics, zero stray fields and insensitivity to external magnetic fields . Tetragonal CuMnAs is a testbed system in…

In the framework of phenomenological model we consider dynamics of a compensated collinear antiferromagnet (AFM) in the presence of spin-polarised current. The model is based on the assumption that AFM spins are localised and spin torque is…

材料科学 · 物理学 2010-03-16 H. Gomonay , V. Loktev

Electric field induced spin-orbit torques are the crucial mechanism for electric regulations of antiferromagnetic order. However, the spin-orbit torques in antiferromagnets and the induced spin dynamics remain largely unexplored. In this…

材料科学 · 物理学 2025-12-12 Yizhuo Song , Jianting Dong , Jiahao Shentu , Jia Zhang

An electrical current can transfer spin angular momentum to a ferromagnet. This novel physical phenomenon, called spin transfer, offers unprecedented spatial and temporal control over the magnetic state of a ferromagnet and has tremendous…

材料科学 · 物理学 2007-05-23 Z. Wei , A. Sharma , A. S. Nunez , P. M. Haney , R. A. Duine , J. Bass , A. H. MacDonald , M. Tsoi

Altermagnets are a class of materials with compensated magnetic moments, in which spin sublattices are related by specific symmetries other than inversion or translation. This allows time-reversal symmetry to be broken without a net…

We theoretically study the current-induced spin torque in antiferromagnetic tunnel junctions, composed of two semi-infinite antiferromagnetic layers separated by a tunnel barrier, in both clean and disordered regimes. We find that the…

介观与纳米尺度物理 · 物理学 2017-04-26 H. Saidaoui , A. Manchon , X. Waintal

Current flowing is studied in magnetic junctions consisting of a ferromagnetic metal (FM), antiferromagnetic conductor (AFM) and a nonmagnetic metal closing the electric circuit. The FM layer with high anisotropy and pinned spins of the…

材料科学 · 物理学 2010-11-22 Yu. V. Gulyaev , P. E. Zilberman , E. M. Epshtein

We present the magnetic phase diagram of a spin-1/2 chain antiferromagnet Sr$_2$CuO$_3$ studied by ultrasound phase-sensitive detection technique. We observe an enhanced effect of external magnetic field on the ordering temperature of the…

强关联电子 · 物理学 2020-05-20 E. G. Sergeicheva , S. S. Sosin , D. I. Gorbunov , S. Zherlitsyn , G. Gu , I. Zaliznyak

Noncollinear antiferromagnets (AFMs) have recently attracted attention in the emerging field of antiferromagnetic spintronics because of their various interesting properties. Due to the noncollinear magnetic order, the localized electron…

介观与纳米尺度物理 · 物理学 2025-01-07 Luke Wernert , Bastián Pradenas , Oleg Tchernyshyov , Hua Chen

Spin-split antiferromagnets have significance for antiferromagnetic (AFM) spintronics due to their momentum dependent spin polarization which can be exploited for the control and detection of the AFM order parameter. Here, we explore the…

材料科学 · 物理学 2025-03-14 Himanshu Mavani , Kai Huang , Kartik Samanta , Evgeny Y. Tsymbal

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

We study the penetration of an external magnetic field into a superconductor with collinear $d$-wave altermagnetic order. We demonstrate that instead of circular Abrikosov vortices, the magnetic field generates elliptical vortices with…

超导电性 · 物理学 2026-04-17 A. A. Mazanik , F. S. Bergeret

Using an electric field instead of an electric current (or a magnetic field) to tailor the electronic properties of magnetic materials is promising for realizing ultralow energy-consuming memory devices because of the suppression of Joule…

材料科学 · 物理学 2018-09-18 Z. X. Feng , H. Yan , Z. Q. Liu

We theoretically propose a realization of a nonlinear nonreciprocal transport in antiferromagnets without relying on the relativistic spin-orbit coupling. Through the symmetry and microscopic model analyses, we show that a local spin scalar…

强关联电子 · 物理学 2022-09-23 Satoru Hayami , Megumi Yatsushiro

In superconductors that lack inversion symmetry, the flow of supercurrent can induce a non-vanishing magnetization, a phenomenon which is at the heart of non-dissipative magneto-electric effects, also known as Edelstein effects. For…