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相关论文: Magnetization direction dependent spin Hall effect…

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Noncollinear antiferromagnets (nc-AFMs) have attracted increasing research attention in spintronics due to their unique spin structures and fascinating charge and spin transport properties. By using first-principles calculations, we…

材料科学 · 物理学 2024-05-28 Meng Zhu , Xinlu Li , Fanxing Zheng , Jianting Dong , Ye Zhou , Kun Wu , Jia Zhang

We study the magnetoelectric and magnetothermal transport properties of noncentrosymmetric metals using semiclassical Boltzmann transport formalism by incorporating the effects of Berry curvature and orbital magnetic moment. These effects…

介观与纳米尺度物理 · 物理学 2021-11-03 Ojasvi Pal , Bashab Dey , Tarun Kanti Ghosh

Spin Hall effect, an electric generation of spin current, allows for efficient control of magnetization. Recent theory revealed that orbital Hall effect creates orbital current, which can be much larger than spin Hall-induced spin current.…

We present a theoretical study of spin-dependent transport through a ferromagnetic domain wall. With an increase of the number of components of the exchange coupling, we have observed that the variance of the conductance becomes half. As…

介观与纳米尺度物理 · 物理学 2015-06-24 J. Ohe , M. Yamamoto , T. Ohtsuki , K. Slevin

The spin Hall effect originating from 5d heavy transition metal thin films such as Pt, Ta, and W is able to generate efficient spin-orbit torques that can switch adjacent magnetic layers. This mechanism can serve as an alternative to…

材料科学 · 物理学 2019-08-30 Wei-Bang Liao , Tian-Yue Chen , Yari Ferrante , Stuart S. P. Parkin , Chi-Feng Pai

We carry out first-principles calculations of the dependence of the intrinsic anomalous Hall conductivity of hcp Co on the magnetization direction. The Hall conductivity decreases smoothly from 481 S/cm to 116 S/cm as the magnetization is…

材料科学 · 物理学 2009-12-17 Eric Roman , Yuriy Mokrousov , Ivo Souza

Slow magnetic relaxation and two level fluctuations measurements under high current injection is performed in single-contacted ferromagnetic nanostructures. The magnetic configurations of the samples are described by two metastable states…

介观与纳米尺度物理 · 物理学 2009-11-10 J. -E. Wegrowe

The conductance of a ferromagnetic particle depends on the relative orientation of the magnetization with respect to the direction of current flow. This phenomenon is known as "anisotropic magnetoresistance". Quantum interference leads to…

介观与纳米尺度物理 · 物理学 2007-05-23 Shaffique Adam , Markus Kindermann , Saar Rahav , Piet W. Brouwer

The magnetization switching of a thin ferromagnetic layer placed on top of a heavy metal (such as Pt, Ta or W) driven by an in-plane current has been observed in recent experiments. The magnetization dynamics of these processes is studied…

材料科学 · 物理学 2015-06-16 G. Finocchio , M. Carpentieri , E. Martinez , B. Azzerboni

Strong magnetic field pulses associated with a relativistic electron bunch can imprint switching patterns in magnetic thin films that have uniaxial in-plane anisotropy. In experiments with Fe and FeCo alloy films the pattern shape reveals…

介观与纳米尺度物理 · 物理学 2017-02-24 Ioan Tudosa

The spin Hall effect and its inverse play key roles in spintronic devices since they allow conversion of charge currents to and from spin currents. The conversion efficiency strongly depends on material details, such as the electronic band…

介观与纳米尺度物理 · 物理学 2012-09-14 D. H. Wei , Y. Niimi , B. Gu , T. Ziman , S. Maekawa , Y. Otani

We generalize the spin Hall angle to laser pulses of finite frequencies in the linear response regime and predict a giant optical spin Hall effect. Namely, for certain transition metal elements, at particular frequencies, the spin current…

介观与纳米尺度物理 · 物理学 2022-04-06 P. Elliott , S. Shallcross , Sangeeta Sharma

The low power manipulation of magnetization is currently a highly sought-after objective in spintronics. Non ferromagnetic large spin-orbit coupling heavy metal (NM) / ferromagnet (FM) heterostructures offer interesting elements of response…

The interplay between magnetism and strong electron correlation in magnetic materials discerns a variety of intriguing topological features. Here, we report a systematic investigation of the magnetic, thermodynamic, and electrical transport…

介观与纳米尺度物理 · 物理学 2024-09-11 Anyesh Saraswati , Sudipta Chatterjee , Nitesh Kumar

The spin Hall effect in a heavy metal intercorrelates an AC electric current to the magnetization dynamics in an adjacent ferromagnet, which manifests as an electric reactance in the system's current-voltage response. We present a…

介观与纳米尺度物理 · 物理学 2025-12-22 Yasufumi Araki , Jun'ichi Ieda

Motivated by recent experiments, we investigate the quantum spin Hall state in 2D topological insulator/ferromagnetic metal planar junctions by means of a tight-binding model and linear response theory. We demonstrate that whether the edge…

介观与纳米尺度物理 · 物理学 2020-06-30 Antonio Zegarra , J. Carlos Egues , Wei Chen

We use micromagnetic simulations to map out and compare, the linear and auto-oscillating modes in constriction-based spin Hall nano-oscillators as a function of applied magnetic field with varying magnitude and out-of-plane angle. We…

介观与纳米尺度物理 · 物理学 2018-01-24 Mykola Dvornik , Ahmad A. Awad , Johan Åkerman

Magnetic topological semimetals, the latest member of topological quantum materials, are attracting extensive attention as they may lead to topologically-driven spintronics. Currently, magnetotransport investigations on these materials are…

We analyze transport of magnetization in insulating systems described by a spin Hamiltonian. The magnetization current through a quasi one-dimensional magnetic wire of finite length suspended between two bulk magnets is determined by the…

介观与纳米尺度物理 · 物理学 2009-11-07 Florian Meier , Daniel Loss

Control of magnetization dynamics is one of the primary goals in spintronics. It has been demonstrated using spin Hall effect i.e charge current to spin current conversion in non-magnetic metal which has large spin-orbit coupling such as…