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The recently predicted mechanism of orbital pumping enables the generation of pure orbital current from a precessing ferromagnet (FM) without the need for electrical current injection. This orbital current can be efficiently injected into…

We experimentally image the magnetic precession phase of patterned spin Hall multilayer samples to study the rf driving field vector using time-resolved anomalous Nernst effect (TRANE) microscopy. Our ferromagnetic resonance (FMR)…

材料科学 · 物理学 2016-04-27 Feng Guo , Jason M. Bartell , Gregory D. Fuchs

Ferrimagnetic insulators (FiMI) have been intensively used in microwave and magneto-optical devices as well as spin caloritronics, where their magnetization direction plays a fundamental role on the device performance. The magnetization is…

We derive the anomalous Hall contributions arising from dipolar interactions to diffusive spin transport in magnetic insulators. Magnons, the carriers of angular momentum in these systems, are shown to have a non-zero Berry curvature,…

介观与纳米尺度物理 · 物理学 2021-06-23 Pieter M. Gunnink , Rembert A. Duine , Andreas Rückriegel

Three-dimensional (3D) topological insulators are known for their strong spin-orbit coupling and the existence of spin-textured topological surface states which could be potentially exploited for spintronics. Here, we investigate spin…

介观与纳米尺度物理 · 物理学 2014-07-31 Mahdi Jamali , Joon Sue Lee , Yang Lv , Zhengyang Zhao , Nitin Samarth , Jian-Ping Wang

The spin Hall effect (SHE) is normally discussed in terms of a spin current, which is ill-defined in strongly spin-orbit-coupled systems because of spin non-conservation. In this work we propose an alternative view of SHE phenomena by…

介观与纳米尺度物理 · 物理学 2019-05-16 Hua Chen , Qian Niu , Allan H. MacDonald

The photonic spin Hall effect (PSHE) in surface plasmon resonance (SPR) structures has great potential for various polarization-sensitive applications and devices. Here, using optical weak measurement, we observe spin-dependent and…

The spin Hall effect (SHE) generates spin currents within nonmagnetic materials. Previously, studies of the SHE have been motivated primarily to understand its fundamental origin and magnitude. Here we demonstrate, using measurement and…

材料科学 · 物理学 2013-05-30 Luqiao Liu , O. J. Lee , T. J. Gudmundsen , D. C. Ralph , R. A. Buhrman

Iridium is a very promising material for spintronic applications due to its interesting magnetic properties such as large RKKY exchange coupling as well as its large spin-orbit coupling value. Ir is for instance used as a spacer layer for…

材料科学 · 物理学 2020-09-02 T. Fache , J. C. Rojas-Sánchez , L. Badie , S. Mangin , S. Petit-Watelot

Spin accumulation generated by the anomalous Hall effects (AHE) in mesoscopic ferromagnetic Ni81Fe19 (permalloy or Py) films is detected electrically by a nonlocal method. The reciprocal phenomenon, inverse spin Hall effects (ISHE), can…

介观与纳米尺度物理 · 物理学 2017-11-22 Chuan Qin , Shuhan Chen , Yunjiao Cai , Fatih Kandaz , Yi Ji

Spin-orbit-related effects offer a highly promising route for reading and writing information in magnetic units of future devices. These phenomena rely not only on the static magnetization orientation but also on its dynamics to achieve…

介观与纳米尺度物理 · 物理学 2017-06-19 Filipe S. M. Guimarães , Manuel dos Santos Dias , Juba Bouaziz , Antonio T. Costa , Roberto B. Muniz , Samir Lounis

We contend that Microwave Spin Pumping was first predicted and observed - albeit using a different and more sensitive detection mechanism than Inverse Spin Hall Effect - in the 1950's. This discovery was the founding step in the widely used…

In the photonic spin Hall effect (SHE), also known as the transverse shift, incident light photons with opposite spins are spatially separated in the transverse direction due to the spin-orbit interaction of light. Here, we propose a…

原子与分子团簇 · 物理学 2025-06-04 Muhammad Waseem , Muzamil Shah , Gao Xianlong

When a flow of electron passes through a paramagnetic layer with strong spin-orbit-coupling such as platinum (Pt), a net spin current is produced via spin Hall effect (SHE). This spin current can exert a torque on the magnetization of an…

介观与纳米尺度物理 · 物理学 2017-11-22 M. R. Hajiali , S. Morteza Mohseni , L. Jamilpanah , M. Hamdi , S. E. Roozmeh , S. Majid. Mohseni

In ferromagnetic metals, the interconversion of spin and charge currents via the spin Hall effect and its inverse can depend on the angle between the ferromagnets magnetization and the spin current polarization direction. Here, such a…

材料科学 · 物理学 2019-03-27 Joel Cramer , Andrew Ross , Samridh Jaiswal , Lorenzo Baldrati , Romain Lebrun , Mathias Kläui

In magnetic systems, angular momentum is carried by spin and orbital degrees of freedom. Nonlocal devices, comprising heavy-metal nanowires on magnetic insulators like yttrium iron garnet (YIG), enable angular momentum transport via…

We report on the experimental observation of excitation and detection of parametric spin waves and spin currents in the bulk acoustic wave resonator. The hybrid resonator consists of ZnO piezoelectric film, yttrium iron garnet (YIG) films…

介观与纳米尺度物理 · 物理学 2020-08-24 S. G. Alekseev , S. E. Dizhur , N. I. Polzikova , V. A. Luzanov , A. O. Raevskiy , A. P. Orlov , V. A. Kotov , S. A. Nikitov

Measurements of frequency dependent ferromagnetic resonance (FMR) and spin pumping driven dc voltage (V_{dc}) are reported for amorphous films of Fe_{78}Ga_{13}B_{9} (FeGaB) alloy to address the phenomenon of self-induced inverse spin Hall…

材料科学 · 物理学 2022-01-12 Prabesh Bajracharya , Vinay Sharma , Anthony Johnson , Ramesh C. Budhani

Spin Hall effects are a collection of relativistic spin-orbit coupling phenomena in which electrical currents can generate transverse spin currents and vice versa. Although first observed only a decade ago, these effects are already…

材料科学 · 物理学 2014-11-13 Jairo Sinova , Sergio O. Valenzuela , J. Wunderlich , C. H. Back , T. Jungwirth

The influence of hydrogen gas absorption by the Pd layer of bi-layered films containing Pd and Co layers on the inverse Spin Hall Effect (iSHE) in the material is measured. iSHE is driven by ferromagnetic resonance in the cobalt layer. In…

材料科学 · 物理学 2017-06-07 S. Watt , R. Cong , C. Lueng , M. Sushruth , P. J. Metaxas , M. Kostylev