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相关论文: Quantifying Spin-Orbit Torques in Antiferromagnet/…

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Spin-orbit torques in ferromagnetic (FM)/non-magnetic (NM) heterostructures offer more energy-efficient means to realize spin-logic devices; however, their strengths are determined by the heterostructure interface. This work examines…

We report the observation of the intrinsic damping-like spin-orbit torque (SOT) arising from the Berry curvature in metallic-magnet/CuO$_x$ heterostructures. We show that a robust damping-like SOT, an order of magnitude larger than a…

材料科学 · 物理学 2018-07-11 Tenghua Gao , Alireza Qaiumzadeh , Hongyu An , Akira Musha , Yuito Kageyama , Ji Shi , Kazuya Ando

Field-free switching of perpendicular magnetization has been observed in an epitaxial L1$_1$-ordered CoPt/CuPt bilayer and attributed to spin-orbit torque (SOT) arising from the crystallographic $3m$ point group of the interface. Using a…

材料科学 · 物理学 2024-12-31 Wuzhang Fang , Edward Schwartz , Alexey A. Kovalev , K. D. Belashchenko

This study explores the mechanisms of spin-orbit torque (SOT) switching in ferromagnetic semiconductors (FMS) with perpendicular magnetic anisotropy (PMA), emphasizing the impact of symmetry-breaking. Using micromagnetic simulations based…

介观与纳米尺度物理 · 物理学 2025-02-25 Apu Kumar Jana , Sanghoon Lee

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

We investigate spin transport in two dimensional ferromagnetic (FTI) and antiferromagnetic (AFTI) topological insulators. In presence of an in plane magnetization AFTI supports zero energy modes, which enables topologically protected edge…

介观与纳米尺度物理 · 物理学 2017-01-26 Sumit Ghosh , Aurelien Manchon

Current-induced spin-orbit torque (SOT) has emerged as a promising method for achieving energy-efficient magnetisation switching in advanced spintronic devices. Over the past two decades, researchers have primarily focused on enhancing spin…

Synthetic antiferromagnets (SAF) have been proposed to replace ferromagnets in magnetic memory devices to reduce the stray field, increase the storage density and improve the thermal stability. Here we investigate the spin-orbit torque in a…

材料科学 · 物理学 2018-07-04 P. X. Zhang , L. Y. Liao , G. Y. Shi , R. Q. Zhang , H. Q. Wu , Y. Y. Wang , F. Pan , C. Song

Effectively manipulating magnetism in ferromagnet (FM) thin film nanostructures with an in-plane current has become feasible since the determination of a 'giant' spin Hall effect (SHE) in certain heavy metal (HM)/FM system. Recently, both…

材料科学 · 物理学 2016-06-29 Yongxi Ou , Shengjie Shi , D. C. Ralph , R. A. Buhrman

Recent discovery of spin-orbit torques (SOTs) within magnetic single-layers has attracted attention in the field of spintronics. However, it has remained elusive as to how to understand and how to tune the SOTs. Here, utilizing the single…

介观与纳米尺度物理 · 物理学 2021-06-28 Lijun Zhu , Daniel C. Ralph , Robert A. Buhrman

Electric-field manipulation of magnetic order has proved of both fundamental and technological importance in spintronic devices. So far, electric-field control of ferromagnetism, magnetization and magnetic anisotropy has been explored in…

Accurate quantification of the spin-orbit torques (SOTs) is critical for the identification and applications of new spin-orbitronic effects. One of the most popular techniques to qualify the SOTs is the switching angle shift, where the…

介观与纳米尺度物理 · 物理学 2025-09-10 Xiaomiao Yin , Guanglei Han , Guowen Gong , Jun Kang , Changmin Xiong , Lijun Zhu

We report that atomic-layer alloying (intermixing) at a Pt/Co interface can increase, by approximately 30%, rather than degrade the interfacial spin transparency, and thereby strengthen the efficiency of the dampinglike spin-orbit torque…

材料科学 · 物理学 2019-05-15 Lijun Zhu , Daniel C. Ralph , Robert A. Buhrman

We theoretically and numerically study the terahertz auto oscillations in thin-film metallic non-collinear coplanar antiferromagnets (AFMs), such as $\mathrm{Mn_{3}Sn}$ and $\mathrm{Mn_{3}Ir}$, under the effect of anti-damping spin-torque…

介观与纳米尺度物理 · 物理学 2022-03-23 Ankit Shukla , Shaloo Rakheja

Antiferromagnets (AFMs) with zero net magnetization are proposed as active elements in future spintronic devices. Depending on the critical thickness of the AFM thin films and the measurement temperature, bimetallic Mn-based alloys and…

We consider current-induced spin-transfer torque on an antiferromagnet in a dual spin-valve setup. It is demonstrated that a net magnetization may be induced in the AFM by partially or completely aligning the sublattice magnetizations via a…

介观与纳米尺度物理 · 物理学 2015-05-30 Jacob Linder

Spin-orbit torque (SOT) created by a spin current injected into a ferromagnet by an adjacent heavy metal represents an efficient tool for the excitation and manipulation of spin waves. Here we report the micromagnetic simulations describing…

介观与纳米尺度物理 · 物理学 2023-10-20 Andrei I. Nikitchenko , Nikolay A. Pertsev

Efficient generation of spin-orbit torques (SOTs) is central for the exciting field of spin-orbitronics. Platinum, the archetypal spin Hall material, has the potential to be an outstanding provider for spin-orbit torques due to its giant…

介观与纳米尺度物理 · 物理学 2021-08-17 Lijun Zhu , Daniel C. Ralph , Robert A Buhrman

Electrical control of magnetization is of crucial importance for integrated spintronics devices. Spin-orbit torques (SOT) in heavy-metal/ferromagnetic heterostructures have emerged as promising tool to achieve efficiently current-induced…

材料科学 · 物理学 2021-07-21 Leandro Salemi , Marco Berritta , Peter M. Oppeneer

5d transition metal Pt is the canonical spin Hall material for efficient generation of spin-orbit torques (SOTs) in Pt/ferromagnetic layer (FM) heterostructures. However, for a long while with tremendous engineering endeavors, the…