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相关论文: Anisotropy-Driven Anomalous Inverse Orbital Hall E…

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We investigate anomalous spin and orbital Hall phenomena in antiferromagnetic (AF) materials via orbital pumping experiments. Conducting spin and orbital pumping experiments on YIG/Pt/Ir20Mn80 heterostructures, we unexpectedly observe…

介观与纳米尺度物理 · 物理学 2025-02-05 J. E. Abrão , E. Santos , J. L. Costa , J. G. S. Santos , J. B. S. Mendes , A. Azevedo

A single layer ferromagnetic film magnetized in the plane of an ac current flow, exhibits a characteristic Hall voltage with harmonic and second harmonic components, which is attributed to the presence of spin currents with polarization…

介观与纳米尺度物理 · 物理学 2024-05-07 Soumik Aon , Harekrishna Bhunia , Pratap Kumar Pal , Abu Bakkar Miah , Dhananjaya Mahapatra , Anjan Barman , Partha Mitra

Spin-orbit interaction (SOI) couples charge and spin transport, enabling electrical control of magnetization. A quintessential example of SOI-induced transport is the anomalous Hall effect (AHE), first observed in 1880, in which an electric…

In this work, the spin pumping technique was employed to investigate the anomalous inverse spin Hall effect in BIG/NiO/Fe samples where BIG[(Bi,Tm)3(Fe,Ga)5O12] exhibits perpendicular magnetic anisotropy. Our results reveal an intriguing…

介观与纳米尺度物理 · 物理学 2023-12-13 J. E. Abrão , A. R. Rodrigues , H. F. Ding , S. Bedanta , A. Azevedo

Our investigation reveals a groundbreaking discovery of a negative inverse orbital Hall effect (IOHE) in Ge thin films. We employed the innovative orbital pumping technique where spin-orbital coupled current is injected into Ge films using…

介观与纳米尺度物理 · 物理学 2025-06-24 E. Santos , J. E. Abrao , J. L. Costa , J. G. S. Santos , J. B. S. Mendes , A. Azevedo

We report a comprehensive experimental investigation of orbital-to-charge conversion in metallic and semiconductor materials, emphasizing the fundamental roles of the inverse orbital Hall effect (IOHE) and the inverse orbital Rashba effect.…

介观与纳米尺度物理 · 物理学 2026-03-26 E. Santos , J. L. Costa , R. L. Rodriguez-Suarez , J. B. S. Mendes , A. Azevedo

Traditional view of the anomalous Hall effect~(AHE) in ferromagnets is that it arises from the magnetization perpendicular to the measurement plane and that there is a linear dependence on the latter. Underlying such a view is the thinking…

材料科学 · 物理学 2024-08-19 Zheng Liu , Mengjie Wei , Dazhi Hou , Yang Gao , Qian Niu

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,…

Electron correlation often gives birth to various orders in quantum materials. Recently, a strongly correlated kagome antiferromagnet FeGe is discovered to undergo a charge density wave transition inside the A-type antiferromagnetic state,…

We study inverse spin and orbital Hall effects in 19 transition metals using spin-pumping driven by ferromagnetic resonance. Spin-to-charge conversion was measured in YIG/X(5), while orbital-to-charge conversion was probed in YIG/Pt(2)/X(5)…

介观与纳米尺度物理 · 物理学 2025-06-24 J. L. Costa , E. Santos , J. B. S. Mendes , A. Azevedo

A spin valve is a prototype of spin-based electronic devices found on ferromagnets, in which an antiferromagnet plays a supporting role. Recent findings in antiferromagnetic spintronics show that an antiferromagnetic order in single-phase…

We investigate spin-dependent transport phenomena in epitaxially grown Fe$_3$Si films, focusing on the anisotropic magnetoresistance (AMR), planar Hall effect (PHE), anomalous Hall effect (AHE), and spin Hall effect (SHE). While the sign…

介观与纳米尺度物理 · 物理学 2025-04-21 Nozomi Soya , Michihiro Yamada , Kohei Hamaya , Kazuya Ando

Noncollinear antiferromagnets (AFMs) have recently attracted a lot of attention owing to the potential emergence of exotic spin orders on geometrically frustrated lattices, which can be characterized by corresponding spin chiralities. By…

A spin-torque ferromagnetic resonance study is performed in epitaxial $\mathrm{Fe / Ir_{15}Mn_{85}}$ bilayers with different Fe thicknesses. We measure a negative spin-Hall angle of a few percent in the antiferromagnetic IrMn in contrast to…

介观与纳米尺度物理 · 物理学 2018-01-04 V. Tshitoyan , P. Wadley , M. Wang , A. W. Rushforth , A. J. Ferguson

Recent observation of anomalous Hall effect (AHE) induced by magnetic field or spin magnetization lying in the Hall deflection plane has sparked interest in diverse mechanisms for inducing the Hall vector component perpendicular to the…

In order to probe the influence of the surface-induced anisotropy on the impurity spin magnetization, we measure the anomalous Hall effect in thin AuFe films at magnetic fields up to 15 T. The observed suppression of the anomalous Hall…

介观与纳米尺度物理 · 物理学 2009-10-31 E. Seynaeve , K. Temst , F. G. Aliev , C. Van Haesendonck , V. N. Gladilin , V. M. Fomin , J. T. Devreese

Crystallographic anisotropy of the spin-dependent conductivity tensor can be exploited to generate transverse spin-polarized current in a ferromagnetic film. This ferromagnetic spin Hall effect is analogous to the spin-splitting effect in…

材料科学 · 物理学 2024-02-09 K. D. Belashchenko

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

Inverse spin Hall effect (ISHE) allows the conversion of pure spin current into charge current in nonmagnetic materials (NM) due to spin-orbit interaction (SOI). In ferromagnetic materials (FM), SOI is known to contribute to anomalous Hall…

介观与纳米尺度物理 · 物理学 2015-06-12 Ayaka Tsukahara , Yuichiro Ando , Yuta Kitamura , Hiroyuki Emito , Eiji Shikoh , Michael P. Delmo , Teruya Shinjo , Masashi Shiraishi

We investigate spin-orbit torques of metallic CuAu-I-type antiferromagnets using spin-torque ferromagnetic resonance tuned by a dc-bias current. The observed spin torques predominantly arise from diffusive transport of spin current…

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