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相关论文: Hanle Magnetoresistance in Thin Metal Films with S…

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We report on experiments demonstrating coherent control of magnon spin transport and pseudospin dynamics in a thin film of the antiferromagnetic insulator hematite utilizing two Pt strips for all-electrical magnon injection and detection.…

We study the magnetoresistance of yttrium iron garnet/Pt heterostructures in which the Pt layer was grown via atomic layer deposition (ALD). Magnetotransport experiments in three orthogonal rotation planes reveal the hallmark features of…

Effectively manipulating magnetism in ferromagnet (FM) thin film nanostructures with an in-plane current has become feasible since the determination of a 'giant' spin Hall effect (SHE) in certain heavy metal (HM)/FM system. Recently, both…

材料科学 · 物理学 2016-06-29 Yongxi Ou , Shengjie Shi , D. C. Ralph , R. A. Buhrman

We report the magnetoresistance and nonlinear Hall effect studies over a wide temperature range in pulsed laser deposited Ni0.07Zn0.93O thin film. Negative and positive contributions to magnetoresistance at high and low temperatures have…

The interaction between the itinerant spins in metals and localized spins in magnetic insulators thus far has only been explored in collinear spin systems, such as garnets. Here, we report the spin-Hall magnetoresistance (SMR) sensitive to…

材料科学 · 物理学 2016-10-17 A. Aqeel , N. Vlietstra , A. Roy , M. Mostovoy , B. J. van Wees , T. T. M. Palstra

In addition to spin, electrons in many materials possess an additional pseudo-spin degree of freedom known as 'valley'. In materials where the spin and valley degrees of freedom are weakly coupled, they can be both excited and controlled…

介观与纳米尺度物理 · 物理学 2019-06-12 Xian-Peng Zhang , Chunli Huang , Miguel A. Cazalilla

Spin Hall magnetoresistance (SMR) refers to a resistance change in a metallic film reflecting the magnetization direction of a magnet attached to the film. The mechanism of this phenomenon is spin exchange between conduction-electron spins…

Electrical detection of topological magnetic textures such as skyrmions is currently limited to conducting materials. While magnetic insulators offer key advantages for skyrmion technologies with high speed and low loss, they have not yet…

Spin-orbit torque in heavy metal/ferromagnet heterostructures with broken spatial inversion symmetry provides an efficient mechanism for manipulating magnetization using a charge current. Here, we report the presence of a spin torque in a…

介观与纳米尺度物理 · 物理学 2019-05-29 Ziyan Luo , Qi Zhang , Yanjun Xu , Yumeng Yang , Xinhai Zhang , Yihong Wu

There has been considerable interest in spin-orbit torques for the purpose of manipulating the magnetization of ferromagnetic (FM) films or nano-elements for spintronic technologies. Spin-orbit torques are derived from spin currents created…

材料科学 · 物理学 2016-02-02 Weifeng Zhang , Wei Han , See-hun Yang , Yan Sun , Yang Zhang , Binghai Yan , Stuart S. P. Parkin

Proximity effect of spin orbit coupling is investigated through anomalous Hall effect in Pt/Co2FeAl and Pt/Permalloy bilayers. A series of nontrivial magnetotransport behaviors, resulting from a strong impact of phonons on skew scattering,…

材料科学 · 物理学 2013-09-27 Yan-Qing Zhang , Niu-Yi Sun , Rong Shan , Zhen-Gang Zhu

Spin-polarized electrical transport is investigated in $ Al_{2}O_{3}/Ni_{80}Fe_{20}/Al_{2}O_{3}$ thin films for permalloy thickness between 6 and 20nm. The degree of spin-polarization of the current flowing in the plane of the film is…

材料科学 · 物理学 2015-06-15 Mohammad Haidar , Matthieu Bailleul

We report anisotropic magnetoresistance in Pt|Y3Fe5O12 bilayers. In spite of Y3Fe5O12 being a very good electrical insulator, the resistance of the Pt layer reflects its magnetization direction. The effect persists even when a Cu layer is…

We report the enhancement of spin-orbit torques in MnAl/Ta films with improving chemical ordering through annealing. The switching current density is increased due to enhanced saturation magnetization MS and effective anisotropy field HK…

材料科学 · 物理学 2017-04-26 K. K. Meng , J. Miao , X. G. Xu , Y. Wu , X. P. Zhao , J. H. Zhao , Y. Jiang

We study theoretically the spin transport in a device in which the active layer is an organic film with numerous deep in-gap levels serving as traps. A carrier, diffusing between magnetized injector and detector, spends a considerable…

介观与纳米尺度物理 · 物理学 2014-12-17 R. C. Roundy , M. E. Raikh

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…

Ferromagnetic insulating garnet films with perpendicular magnetic anisotropy (PMA) are of great importance for the applications in spintronics. Tm3Fe5O12 (TmIG) with magnetoelastic anisotropy has been proven to exhibit PMA more easily than…

材料科学 · 物理学 2025-02-20 Yufeng Wang , Peng Zhou , Shuai Liu , Yajun Qi , Tianjin Zhang

A theoretical formulation of magnetoresistance effect in a metallic ferromagnetic/nonmagnetic bilayer originated from the charge-spin conversion by the anomalous Hall effect is presented. Analytical expressions of the longitudinal and…

介观与纳米尺度物理 · 物理学 2016-11-28 Tomohiro Taniguchi

The dependence of the spin-pumping effect on the yttrium iron garnet (Y3Fe5O12, YIG) thickness detected by the inverse spin Hall effect (ISHE) has been investigated quantitatively. Due to the spin-pumping effect driven by the magnetization…

介观与纳米尺度物理 · 物理学 2015-04-08 M. B. Jungfleisch , A. V. Chumak , A. Kehlberger , V. Lauer , D. H. Kim , M. C. Onbasli , C. A. Ross , M. Kläui , B. Hillebrands

Current-induced spin-orbit torques in Co$_2$FeAl/Pt ultrathin bilayers are studied using a magnetoresistive harmonic response technique, which distinguishes the dampinglike and fieldlike contributions. The presence of a…

介观与纳米尺度物理 · 物理学 2018-01-17 T. A. Peterson , A. P. McFadden , C. J. Palmstrøm , P. A. Crowell