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相关论文: Intrinsic spin currents in bulk noncentrosymmetric…

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Properties are discussed of a ferromagnetic junction of the type "rod contacting with film". Very high current density of the order of $10^9$ A/cm$^2$ may be achieved in the contact region. We show it can lead to inversion of population of…

材料科学 · 物理学 2010-05-11 S. G. Chigarev , E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman

The generation of spin currents and their application to the manipulation of magnetic states is fundamental to spintronics. Of particular interest are chiral antiferromagnets that exhibit properties typical of ferromagnetic materials even…

The spin-orbit interaction enables interconversion between a charge current and a spin current. It is usually believed that in a nonmagnetic metal (NM) or at a NM/ferromagnetic metal (FM) bilayer interface, the symmetry of spin-orbit…

Electrical manipulation of spins is essential to design state-of-the-art spintronic devices and commonly relies on the spin current injected from a second heavy-metal material. The fact that chiral antiferromagnets produce spin current…

材料科学 · 物理学 2022-10-26 Hang Xie , Xin Chen , Qi Zhang , Zhiqiang Mu , Xinhai Zhang , Binghai Yan , Yihong Wu

In gyrotropic crystals, an oscillating magnetic field induces a charge response known as the gyrotropic magnetic current. While its conventional origin is attributed to magnetic field modified band energy and shift in the Fermi-surface, a…

介观与纳米尺度物理 · 物理学 2026-01-09 Koushik Ghorai , Sankar Sarkar , Amit Agarwal

Magnetic junction is considered which consists of two ferromagnetic metal layers, a thin nonmagnetic spacer in between, and nonmagnetic lead. Theory is developed of a magnetization reversal due to spin injection in the junction.…

材料科学 · 物理学 2009-11-10 R. J. Elliott , E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman

We theoretically study spin current through ferromagnet (F) in a Josephson junction composed of s-wave superconductors and two layers of ferromagnets. Using quasiclassical theory, we show that the long-range spin current can be driven by…

超导电性 · 物理学 2015-06-15 S. Hikino , S. Yunoki

The broken inversion symmetry at the surface of a metallic film (or, more generally, at the interface between a metallic film and a different metallic or insulating material) greatly amplifies the influence of the spin-orbit interaction on…

介观与纳米尺度物理 · 物理学 2015-06-23 I. V. Tokatly , E. E. Krasovskii , G. Vignale

Electric generation of spin current via spin Hall effect is of great interest as it allows an efficient manipulation of magnetization in spintronic devices. Theoretically, spin current can be also created by a temperature gradient, which is…

We theoretically propose a method of rectifying spin current with a linearly-polarized electromagnetic wave in inversion-asymmetric magnetic insulators. To demonstrate the proposal, we consider quantum spin chains as a simple example; these…

强关联电子 · 物理学 2019-05-22 Hiroaki Ishizuka , Masahiro Sato

We theoretically investigate quantum spin transfer from spin-correlated conduction-electron pairs to localized spins in a ferromagnet, given that electrons are correlated intrinsically. We show that even spin-singlet pairs and triplet pairs…

介观与纳米尺度物理 · 物理学 2026-01-09 Seongmun Hwang , Jung Hyun Oh , Paul M. Haney , Mark D. Stiles , Kyung-Jin Lee

The dynamics of the magnetic order parameters of ferromagnet/normal-metal/ferromagnet spin valves and isolated ferromagnets may be very different. We investigate the role of the nonequilibrium spin-current exchange between the ferromagnets…

介观与纳米尺度物理 · 物理学 2009-11-07 Yaroslav Tserkovnyak , Arne Brataas , Gerrit E. W. Bauer

The intrinsic spins and their correlations are the least understood characteristics of fission fragments from both theoretical and experimental points of view. In many nuclear reactions the emerging fragments are typically excited and…

核理论 · 物理学 2021-04-20 A. Bulgac , I. Abdurrahman , S. Jin , K. Godbey , N. Schunck , I. Stetcu

We theoretically investigate current-induced magnetization dynamics in chiral-lattice helimagnets. Spin-orbit coupling in non-centrosymmetric crystals induces a reactive spin-transfer torque that has not been previously considered. We…

介观与纳米尺度物理 · 物理学 2013-05-09 Kjetil M. D. Hals , Arne Brataas

Coupling between conduction electrons and localized magnetization is responsible for a variety of phenomena in spintronic devices. This coupling enables to generate spin currents from dynamical magnetization. Due to the nonlinearity of…

介观与纳米尺度物理 · 物理学 2015-07-23 Takaharu Tashiro , Saki Matsuura , Akiyo Nomura , Shun Watanabe , Keehoon Kang , Henning Sirringhaus , Kazuya Ando

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

The noncollinear antiferromagnets Mn$_3$Sn/Ge emerge as promising spin-current sources with both in-plane and out-of-plane spin polarizations, thereby enabling field-free magnetization switching. However, the microscopic origin of the…

介观与纳米尺度物理 · 物理学 2026-03-26 Mingxing Wu , Kouta Kondou , Taishi Chen , Satoru Nakatsuji , YoshiChika Otani

We have shown that electron spin density can be generated by a dc current flowing across a $pn$ junction with an embedded asymmetric quantum well. Spin polarization is created in the quantum well by radiative electron-hole recombination…

介观与纳米尺度物理 · 物理学 2009-11-07 A. G. Mal'shukov , K. A. Chao

In the area of superconducting spintronics, spin triplet supercurrents in half-metallic ferromagnets (HMFs) could yield dissipationless spin transport over large distances, and high current density. Promising among the HMFs is the…

超导电性 · 物理学 2024-10-10 Yao Junxiang , Remko Fermin , Mariona Cabero , Kaveh Lahabi , Jan Aarts

We study the influence of an electric current on a continuous non-collinear antiferromagnetic texture. Despite the lack of a net magnetic moment we find that the exchange interaction between conduction electrons and local magnetization…

介观与纳米尺度物理 · 物理学 2009-12-24 A. C. Swaving , R. A. Duine