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相关论文: Acoustic spin Hall effect in strong spin-orbit met…

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The parametric excitation of spin waves by coherent surface acoustic waves is demonstrated experimentally in metallic magnetic thin film structures. The involved magnon modes are analyzed with micro-focused Brillouin light scattering…

Precise estimation of spin Hall angle as well as successful maximization of spin-orbit torque (SOT) form a basis of electronic control of magnetic properties with spintronic functionality. Until now, current-nonlinear Hall effect, or second…

材料科学 · 物理学 2017-10-02 K. Yasuda , A. Tsukazaki , R. Yoshimi , K. Kondou , K. S. Takahashi , Y. Otani , M. Kawasaki , Y. Tokura

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

In spintronics, both electronic charge and spin are used to process and store information. Generation, manipulation, and detection of spin currents are essential for the development of next-generation spintronic technologies. Here, we…

介观与纳米尺度物理 · 物理学 2026-05-15 Diego B. Fonseca , Luiz Felipe C. Pereira , Anderson L. R. Barbosa

Recent discovery of orbital currents in several material platforms including light element metals has opened new possibilities for exploring novel transport phenomena and applications to spin-orbitronic devices. These orbital currents,…

The spin Hall effect (SHE) is the conversion of charge current to spin current, and non-magnetic metals with large SHEs are extremely sought after for spintronic applications, but their rarity has stifled widespread use. Here we predict and…

介观与纳米尺度物理 · 物理学 2019-04-09 E. Derunova , Y. Sun , C. Felser , S. S. P. Parkin , B. Yan , M. N. Ali

Currents can induce spin excitations in antiferromagnets, even when they are insulating. We investigate how spin transfer can cause antiferromagnetic resonance in bilayers and trilayers that consist of one antiferromagnetic insulator and…

介观与纳米尺度物理 · 物理学 2018-02-28 Øyvind Johansen , Hans Skarsvåg , Arne Brataas

Robust spin Hall effects (SHE) have recently been observed in non-magnetic heavy metal systems with strong spin-orbit interactions. These SHE are either attributed to an intrinsic band-structure effect or to extrinsic spin-dependent…

材料科学 · 物理学 2018-03-05 Yongxi Ou , D. C. Ralph , R. A. Buhrman

Understanding the flow of spins in magnetic layered structures has enabled an increase in data storage density in hard drives over the past decade of more than two orders of magnitude1. Following this remarkable success, the field of…

介观与纳米尺度物理 · 物理学 2010-04-20 C. H. L. Quay , T. L. Hughes , J. A. Sulpizio , L. N. Pfeiffer , K. W. Baldwin , K. W. West , D. Goldhaber-Gordon , R. de Picciotto

The spin Hall effect (SHE) can generate a pure spin current by an electric current, which is promisingly used to electrically control magnetization. To reduce power consumption of this control, a giant spin Hall angle (SHA) in the SHE is…

Spin Hall effect for excitons in alkali halides and in Cu_2O is investigated theoretically. In both systems, the spin Hall effect results from the Berry curvature in k space, which becomes nonzero due to lifting of degeneracies of the…

介观与纳米尺度物理 · 物理学 2008-11-05 Shun-ichi Kuga , Shuichi Murakami , Naoto Nagaosa

Spin Hall effect and its inverse provide essential means to convert charge to spin currents and vice versa, which serve as a primary function for spintronic phenomena such as the spin-torque ferromagnetic resonance and the spin Seebeck…

介观与纳米尺度物理 · 物理学 2015-11-03 Yasuhiro Niimi , YoshiChika Otani

The emerging field of quantum acoustics explores interactions between acoustic waves and artificial atoms and their applications in quantum information processing. In this experimental study, we demonstrate the coupling between a surface…

量子物理 · 物理学 2016-12-28 D. Andrew Golter , Thein Oo , Mayra Amezcua , Ignas Lekavicius , Kevin A. Stewart , Hailin Wang

We study the ac current-driven domain wall motion in bilayer ferromagnetic metal (FM)/nonmagnetic metal (NM) nanowire. The solution of the modified Landau-Lifshitz-Gilbert equation including all the spin transfer torques is used to describe…

介观与纳米尺度物理 · 物理学 2017-10-13 M. R. Hajiali , M. Hamdi , S. E. Roozmeh , S. M. Mohseni

We report very efficient spin current generation by the spin Hall effect in the alloy Au0.25Pt0.75, which, as determined by two different direct spin-orbit torque measurements, exhibits a giant internal spin Hall ratio of > 0.58…

介观与纳米尺度物理 · 物理学 2018-09-12 Lijun Zhu , Daniel. C. Ralph , Robert A. Buhrman

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…

Surface acoustic waves (SAWs) have emerged as innovative and energy-efficient means to manipulate domain walls (DWs) and skyrmions in thin films with perpendicular magnetic anisotropy (PMA) owing to the magnetoelastic coupling effect. This…

应用物理 · 物理学 2023-11-28 Jintao Shuai

In spinelectronics the spin degree of freedom is used to transmit and store information. Ideally this occurs without net charge currents in order to avoid energy dissipation due to Joule heating. To this end the ability to create pure spin…

介观与纳米尺度物理 · 物理学 2014-10-27 Dahai Wei , Martin Obstbaum , Christian Back , Georg Woltersdorf

The spin Hall effect is a phenomenon of inducing spin current by an external electric field. We recently proposed that this effect can occur in p-type semiconductors without relying upon any disorder scattering [S. Murakami et al., Science…

介观与纳米尺度物理 · 物理学 2017-08-23 Shuichi Murakami

We report an intrinsic form of the inverse spin Hall effect (ISHE) in ferromagnetic (FM) metal with Rashba spin orbit coupling (RSOC), which is driven by a normal charge current. Unlike the conventional form, the ISHE can be induced without…

介观与纳米尺度物理 · 物理学 2012-03-01 M. -J. Xing , M. B. A. Jalil , Seng Ghee Tan , Y. Jiang