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The dependence of the critical current of spin transfer torque-driven magnetization dynamics on the free-layer thickness was studied by taking into account both the finite penetration depth of the transverse spin current and spin pumping.…

介观与纳米尺度物理 · 物理学 2009-11-13 Tomohiro Taniguchi , Hiroshi Imamura

A transport current distribution over a wide superconducting sheet is shown to strongly change in a presence of bulk magnetic screens of a soft magnet with a high permeability. Depending on the geometry, the effect may drastically suppress…

超导电性 · 物理学 2009-10-31 Yu. A. Genenko , A. Usoskin , H. C. Freyhardt

Antiferromagnetic materials with spin splitting have attracted considerable attention for their symmetry-enabled anisotropic spin textures that sustain a zero net magnetization, thereby facilitating efficient spin-current generation. In…

材料科学 · 物理学 2026-03-25 Jiabin Wang , Wancheng Zhang , Zhenhua Zhang , Rui Xiong , Yong Liu , Zhihong Lu

We scrutinize the magnetic properties of $\kappa$-(BEDT-TTF)$_2$Hg(SCN)$_2$Cl through its first-order metal-insulator transition at $T_{\rm CO}=30$ K by means of $^1$H nuclear magnetic resonance (NMR). While in the metal we find…

强关联电子 · 物理学 2020-04-08 A. Pustogow , T. Le , H. -H. Wang , Yongkang Luo , E. Gati , H. Schubert , M. Lang , S. E. Brown

For the first time the persistent current in a 2D free-electron system has been calculated analytically. The tight binding model is considered on a square lattice with filling factor 1/2. The array has a shape of rectangle with boundary…

凝聚态物理 · 物理学 2008-02-03 E. V. Tsiper , A. L. Efros

Colossal magnetoresistance (CMR) refers to a large change in electrical conductivity induced by a magnetic field in the vicinity of a metal-insulator transition and has inspired extensive studies for decades\cite{Ramirez1997, Tokura2006}.…

材料科学 · 物理学 2018-08-01 Zhiyong Qiu , Dazhi Hou , Joseph Barker , Kei Yamamoto , Olena Gomonay , Eiji Saitoh

A custom-developed magneto-mechanical resonator (MMR) for wireless pressure measurement is investigated for potential applications in process engineering. The MMR sensor utilises changes in the resonance frequency caused by pressure on a…

We study spin-scattering asymmetry at the interface of two ferromagnets (FMs) based on a half-metallic Co$_{2}$Fe$_{0.4}$Mn$_{0.6}$Si (CFMS)/CoFe interface. First-principles ballistic transport calculations based on Landauer formula for…

材料科学 · 物理学 2021-10-13 Y. Fujita , Y. Miura , T. Sasaki , T. Nakatani , K. Hono , Y. Sakuraba

Efficient manipulation of magnetic materials is essential for spintronics. In spin-current generator/magnet bilayers, the efficiency of spin-orbit torques per magnetic layer thickness scales inversely with the magnetic layer thickness,…

材料科学 · 物理学 2022-12-20 Lijun Zhu , Jingwei Li , Lujun Zhu , Xinyue Xie

Ferromagnetic spintronics has been a main focus as it offers non-volatile memory and logic applications through current-induced spin-transfer torques. Enabling wider applications of such magnetic devices requires a lower switching current…

A theory for calculating spin wave relaxation times based on the magnon-electron interaction is developed. The theory incorporates a thin film geometry and is valid for a large range of magnon frequencies and wave vectors. For high…

其他凝聚态物理 · 物理学 2009-11-11 A. Misra , R. H. Victora

In this paper, we propose a Spin-Torque (ST) based sensing scheme that can enable energy efficient multi-bit long distance interconnect architectures. Current-mode interconnects have recently been proposed to overcome the performance…

新兴技术 · 计算机科学 2016-04-20 Zubair Al Azim , Abhronil Sengupta , Syed Shakib Sarwar , Kaushik Roy

In recent years, multifunctional materials have attracted increasing interest for magnetic memories and energy harvesting applications. Magnetic insulating materials are of special interest for this purpose, since they allow the design of…

Recently it has been predicted that a spin-polarized electrical current perpendicular-to-plane (CPP) directly flowing through a magnetic element can induce magnetization switching through spin-momentum transfer. In this letter, the first…

材料科学 · 物理学 2007-05-23 Y. Jiang , S. Abe , T. Ochiai , T. Nozaki , A. Hirohata , N. Tezuka , K. Inomata

NMR measurements of the electron spin polarization have been performed on a 2D electron system at and around half-filled lowest Landau level. Comparing the magnetic field and the temperature dependence of the spin polarization to models of…

介观与纳米尺度物理 · 物理学 2016-08-16 N. Freytag , M. Horvatić , C. Berthier , M. Shayegan , L. P. Lévy

We theoretically study the magnetoresistance of a CPP-GMR system with current confined paths (CCP) in the framework of Valet-Fert theory. The continuity equations for charge and spin currents are numerically solved with the…

介观与纳米尺度物理 · 物理学 2009-11-13 Jun Sato , Katsuyoshi Matsushita , Hiroshi Imamura

Spin-transfer torque and current induced spin dynamics in spin-valve nanopillars with the free magnetic layer located between two magnetic films of fixed magnetic moments is considered theoretically. The spin-transfer torque in the limit of…

介观与纳米尺度物理 · 物理学 2010-04-12 Pavel Balaz , Martin Gmitra , Jozef Barnas

We reported a systematic study of spin-orbit torque biased magnetic sensors based on NiFe/Pt bilayers through both macro-spin modeling and experiments. The simulation results show that it is possible to achieve a linear sensor with a…

介观与纳米尺度物理 · 物理学 2017-12-13 Yanjun Xu , Yumeng Yang , Ziyan Luo , Baoxi Xu , Yihong Wu

An experimental protocol is presented that allows the entropy generated by spin-transfer to be measured. The effect of a strong spin-polarized current injected on a ferromagnetic nanostructure is investigated with focusing on the…

介观与纳米尺度物理 · 物理学 2008-08-05 J. -E. Wegrowe , Q. Anh Nguyen , T. L. Wade

Spin wave and magnetic domain wall are two of basic excitations in magnetic systems, and their spatiotemporal interplay encodes rich information of underlying magnetic interactions. In synthetic antiferromagnets, the domain wall acquires an…

介观与纳米尺度物理 · 物理学 2025-09-03 Jin Lan , Yang Zhang