中文
相关论文

相关论文: Spin Hall Magnetoresistance in Metallic Bilayers w…

200 篇论文

Pure spin currents hold promises for an energy-friendlier spintronics. They can be generated by a flow of charge along a non-magnetic metal having a large spin-orbit coupling. It produces a spin accumulation at its surfaces, controllable by…

Anisotropic magnetoresistance (AMR) arises from symmetry lowering of the conductivity tensor induced by magnetic order. In simple ferromagnets, AMR is a relativistic effect, relying on spin-orbit interaction (SOC). Here, we demonstrate that…

材料科学 · 物理学 2025-07-17 Philipp Ritzinger , Ondřej Sedláček , Jakub Železný , Karel Výborný

Spin pumping in ferromagnets provides a source of pure spin currents. Via the inverse spin Hall effect a spin current is converted into a charge current and a corresponding detectable DC-voltage. The ratio of injected spin current to…

介观与纳米尺度物理 · 物理学 2015-06-16 M. Obstbaum , M. Härtinger , T. Meier , F. Swientek , C. H. Back , G. Woltersdorf

The interplay between electronic transport and antiferromagnetic order has attracted a surge of interest as recent studies have shown that a moderate change in the spin orientation of a collinear antiferromagnet may have a significant…

We theoretically analyze the anisotropic magnetoresistance (AMR) effects of bcc Fe (+), fcc Co (+), fcc Ni (+), Fe$_4$N (-), and a half-metallic ferromagnet (-). The sign in each ( ) represents the sign of the AMR ratio observed…

材料科学 · 物理学 2015-08-24 Satoshi Kokado , Masakiyo Tsunoda , Kikuo Harigaya , Akimasa Sakuma

We develop a model for the magnonic contribution to the unidirectional spin Hall magnetoresistance (USMR) of heavy metal/ferromagnetic insulator bilayer films. We show that diffusive transport of Holstein-Primakoff magnons leads to an…

介观与纳米尺度物理 · 物理学 2019-03-06 W. P. Sterk , D. Peerlings , R. A. Duine

The spin Hall magnetoresistance (SMR) and anomalous Hall effect (AHE) are observed in a Cr2O3/Ta structure. The structural and surface morphology of Cr2O3/Ta bilayers have been investigated. Temperature dependence of longitudinal and…

材料科学 · 物理学 2018-10-30 Yang Ji , J. Miao , K. K. Meng , X. G. Xu , J. K. Chen , Y. Wu , Y. Jiang

Anisotropic magnetoresistance (AMR), originating from spin-orbit coupling (SOC), is the sensitivity of the electrical resistance in magnetic systems to the direction of spin magnetization. Although this phenomenon has been experimentally…

材料科学 · 物理学 2020-08-12 Dongzhe Li , Fabian Pauly , Alexander Smogunov

We investigate the observation of negative spin Hall magnetoresistance (SMR) in antiferromagnetic Cr2O3/Ta bilayers at low temperature. The sign of the SMR signals is changed from positive to negative monotonously from 300 K to 50 K. The…

材料科学 · 物理学 2018-06-12 Y. Ji , J. Miao , Y. M. Zhu , K. K. Meng , X. G. Xu , J. K. Chen , Y. Wu , Y. Jiang

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

We report an investigation of anisotropic magnetoresistance (AMR) and anomalous Hall resistance (AHR) of Rh and Pt thin films sputtered on epitaxial Y$_3$Fe$_5$O$_{12}$ (YIG) ferromagnetic insulator films. For the Pt/YIG hybrid, large…

介观与纳米尺度物理 · 物理学 2015-11-20 T. Shang , Q. F. Zhan , H. L. Yang , Z. H. Zuo , Y. L. Xie , H. H. Li , L. P. Liu , B. M. Wang , Y. H. Wu , S. Zhang , Run-Wei Li

We consider a microscopic theory for the spin Hall magnetoresistance (SMR). We generally formulate a spin conductance at an interface between a normal metal and a magnetic insulator in terms of spin susceptibilities. We reveal that SMR is…

介观与纳米尺度物理 · 物理学 2020-11-17 Takeo Kato , Yuichi Ohnuma , Mamoru Matsuo

We present a detailed analysis of harmonic longitudinal and Hall voltage measurements for in-plane magnetized Pt/Co/Ta and Ta/Co/Pt trilayers in reference to Pt/Co and Ta/Co bilayers. Enhancement of spin-orbit torques (SOTs) and…

介观与纳米尺度物理 · 物理学 2021-11-17 Anastasiia Moskaltsova , Denis Dyck , Jan-Michael Schmalhorst , Günter Reiss , Timo Kuschel

Electronic transport in ferromagnetic ballistic conductors is predicted to exhibit ballistic anisotropic magnetoresistance (BAMR) - a change in the ballistic conductance with the direction of magnetization. This phenomenon originates from…

介观与纳米尺度物理 · 物理学 2013-09-18 J. Velev , R. F. Sabirianov , S. S. Jaswal , E. Y. Tsymbal

We report on spin Hall magnetoresistance (SMR) measurements of Pt Hall bars on the antiferromagnetic NiO(111) single crystal. An SMR with a sign opposite of conventional SMR is observed over a wide range of temperatures as well as magnetic…

介观与纳米尺度物理 · 物理学 2017-08-08 Geert R. Hoogeboom , Aisha Aqeel , Timo Kuschel , Thomas T. M. Palstra , Bart J. van Wees

We report on spin Hall magnetoresistance (SMR) in bilayers composed of Pt and magnetic insulator MgFe$_{2}$O$_{4}$ (MFO) with spinel structure. The Pt thickness dependence of the SMR reveals that annealing of the MFO surface before…

材料科学 · 物理学 2024-01-02 Masafumi Sugino , Kohei Ueda , Takanori Kida , Masayuki Hagiwara , Jobu Matsuno

Magnetization dynamics in W/CoFeB, CoFeB/Pt and W/CoFeB/Pt multilayers was investigated using spin-orbit-torque ferromagnetic resonance (SOT-FMR) technique. An analytical model based on magnetization dynamics due to SOT was used to fit…

Materials with significant spin-orbit coupling enable efficient spin-to-charge interconversion, which can be utilized in novel spin electronic devices. A number of elements, mainly heavy-metals (HM) have been identified to produce a sizable…

High-order anisotropic magnetoresistance (AMR) is observed up to the 18th harmonic in cubic Fe(001) thin films, overturning the long-standing paradigm that only two- and four-fold terms are symmetry-allowed. Using angle-resolved transport…

其他凝聚态物理 · 物理学 2025-12-25 Haoran Chen , Yue Chen , Yizi Feng , Ruda Guo , Yuanfei Fan , Hongyue Xu , Tong Wu , Zhongxun Guo , Di Yue , Xiaofeng Jin , Yi Liu , Zhe Yuan , Yizheng Wu

In recent years, spin Hall magnetoresistance (SMR) has emerged as an efficient way to probe the spontaneous magnetization state in ordered magnetic systems, by electrical current. Less known is its versatility as a probe of materials that…

材料科学 · 物理学 2023-07-26 V. Eswara Phanindra , A. Das , J. J. L. van Rijn , S. Chen , B. J. van Wees , T. Banerjee