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SrIrO$_3$ with its large spin-orbit coupling and low charge conductivity has emerged as a potential candidate for efficient spin-orbit torque magnetization control in spintronic devices. We here report on the influence of an interfacial…

Recent experiments have revealed nonlinear features of the magnetoresistance in metallic bilayers consisting of a heavy-metal (HM) and a ferromagnetic metal (FM). A small change in the lon- gitudinal resistance of the bilayer has been…

介观与纳米尺度物理 · 物理学 2016-10-20 Steven S. -L. Zhang , Giovanni Vignale

A spin battery concept is applied for the dynamical generation of pure spin current and spin transport in p-type silicon (p-Si). Ferromagnetic resonance and effective s-d coupling in Ni80Fe20 results in spin accumulation at the…

材料科学 · 物理学 2013-01-30 Eiji Shikoh , Kazuya Ando , Eiji Saito , Kazuki Kubo , Teruya Shinjo , Masashi Shiraishi

We report that the spin current generated by spin Seebeck effect (SSE) in yttrium iron garnet (YIG) can be detected by a ferromagnetic metal (NiFe). By using the FM/AFM exchange bias structure (NiFe/IrMn), inverse spin Hall effect (ISHE)…

材料科学 · 物理学 2015-07-20 H. Wu , C. H. Wan , Z. H. Yuan , X. Zhang , J. Jiang , Q. T. Zhang , Z. C. Wen , X. F. Han

We propose a method to separate the inverse spin Hall effect (ISHE) from galvanomagnetic effects in spin pumping experiments on metallic bilayer systems by measuring the dc electromotive force in two orthogonal directions. Calculations of…

介观与纳米尺度物理 · 物理学 2016-01-15 J. Lustikova , Y. Shiomi , E. Saitoh

We report unambiguously experimental evidence of a strong orbital current in Nb films with weak spin-orbit coupling via the spin-torque ferromagnetic resonance (ST-FMR) spectrum for Fe/Nb and Co/Nb bilayers. The sign change of the…

应用物理 · 物理学 2023-02-22 Fufu Liu , Bokai Liang , Jie Xu , Chenglong Jia , Changjun Jiang

We have proposed a method to synchronize multiple spin-transfer torque oscillators based on spin pumping, inverse spin Hall, and spin Hall effects. The proposed oscillator system consists of a series of nano-magnets in junction with a…

介观与纳米尺度物理 · 物理学 2015-06-04 Mehrdad Elyasi , Charanjit S. Bhatia , Hyunsoo Yang

Analyzing spin transport of quasi-2D electrons gas moving through a semiconductor wave guide subject to a sectionally homogeneous tilted magnetic field, we found well-defined selection rules for resonant and antiresonant spin carrier…

介观与纳米尺度物理 · 物理学 2009-11-13 J. L. Cardoso , P. Pereyra

We report on the spin-polarized electron injection through an Fe(100)/InAs(100) junction. The circularly polarized electroluminescence of injected electrons from epitaxially grown Fe thin film into InAs(100) in an external magnetic field is…

The nuclear-to-electron spin angular momentum conversion via hyperfine coupling in a normal metal (NM)/ferromagnet (FM) bilayer system is theoretically investigated by using the nonequilibrium Green's function method. The spin current…

介观与纳米尺度物理 · 物理学 2018-09-10 Y. Ohnuma , S. Maekawa , M. Matsuo

The molecular-based ferrimagnetic insulator V(TCNE)x has gained recent interest for efficient spin-wave excitation due to its low Gilbert damping ratio a=4E-5, and narrow ferromagnetic resonance linewidth f=1Oe. Here we report a clean spin…

材料科学 · 物理学 2024-04-01 Zichen Wang , Seth Kurfman , Sarah Ursel , E. Johnston-Halperin , Henning Sirringhaus

We investigated spin Hall magnetoresistance in FeMn/Pt bilayers, which was found to be one order of magnitude larger than that of heavy metal and insulating ferromagnet or antiferromagnet bilayer systems, and comparable to that of NiFe/Pt…

介观与纳米尺度物理 · 物理学 2016-10-13 Yumeng Yang , Yanjun Xu , Kui Yao , Yihong Wu

Spin pumping is becoming an established method to generate voltages from magnetic dynamics. The standard detection method of spin pumping is based on open circuit voltage measurement across ferromagnetic (FM) and non-magnetic (NM)…

其他凝聚态物理 · 物理学 2019-01-29 K. Rogdakis , N. Alfert , A. Srivastava , J. W. A. Robinson , M. G. Blamire , L. F. Cohen , H. Kurebayashi

3-D topological insulators (TI) with large spin Hall conductivity have emerged as potential candidates for spintronic applications. Here, we report spin to charge conversion in bilayers of amorphous ferromagnet (FM) Fe_{78}Ga_{13}B_{9}…

Bilayer graphene, in the presence of a one-sided spin-orbit interaction (SOI) induced by a suitably chosen substrate, is predicted to exhibit unconventional Quantum Hall states. The new states arise due to strong SOI-induced splittings of…

介观与纳米尺度物理 · 物理学 2018-12-07 Jun Yong Khoo , Leonid Levitov

The spin Hall effect and its inverse effect, caused by the spin orbit interaction, provide the interconversion between spin current and charge current. Since the effects make it possible to generate and manipulate spin current electrically,…

材料科学 · 物理学 2018-01-11 Lingjun Zhou , Vahram L. Grigoryan , Sadamichi Maekawa , Xuhui Wang , Jiang Xiao

The spin Hall effect (SHE), induced by spin-orbit interaction in nonmagnetic materials, is one of the promising phenomena for conversion between charge and spin currents in spintronic devices. The spin Hall (SH) angle is the characteristic…

介观与纳米尺度物理 · 物理学 2014-02-05 Y. Niimi , H. Suzuki , Y. Kawanishi , Y. Omori , T. Valet , A. Fert , Y. Otani

This study investigates the anomalous orbital effects in iron (Fe) films with strong uniaxial anisotropy, highlighting the interactions between spin and orbital currents. Using heterogeneous YIG/Fe and YIG/Pt/Fe structures, fabricated by…

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

Heavy metal-ferromagnet bilayer structures have attracted great research interest for charge-to-spin interconversion. In this work, we have investigated the effect of the permalloy seed layer on the Ta polycrystalline phase and its spin…

Noncollinear antiferromagnets have promising potential to replace ferromagnets in the field of spintronics as high-density devices with ultrafast operation. To take full advantage of noncollinear antiferromagnets in spintronics…

材料科学 · 物理学 2021-08-05 T. Hajiri , K. Matsuura , K. Sonoda , E. Tanaka , K. Ueda , H. Asano