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相关论文: Determining key spin-orbitronic parameters by mean…

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We develop a self-consistent theory for current-induced spin wave excitations in normal metal-magnetic insulator bilayer systems, thereby establishing the relation between spin wave excitation and the experimentally controlled parameters.…

介观与纳米尺度物理 · 物理学 2015-06-16 Yan Zhou , Hu-jun Jiao , Yan-ting Chen , Gerrit E. W. Bauer , Jiang Xiao

Herein, we study the spin-wave dispersion and dissipation in a ferromagnetic insulator--normal metal--ferromagnetic insulator system. Long-range dynamic coupling because of spin pumping and spin transfer lead to collective magnetic…

介观与纳米尺度物理 · 物理学 2014-11-25 Hans Skarsvag , Andre Kapelrud , Arne Brataas

This Letter presents a theoretical analysis of propagation of spin waves in a superconducting ferromagnet. The surface impedance was calculated for the case when the magnetization is normal to the sample surface. We found the frequencies at…

凝聚态物理 · 物理学 2009-11-10 V. Braude , E. B. Sonin

We investigate the effect that density wave states have on the localized spins of a square lattice. We find that topologically nontrivial density wave states can induce stable Dzyaloshinskii-Moriya (DM) interactions among the localized…

强关联电子 · 物理学 2021-01-27 Ian E. Powell , Steven Durr , Nicholas Rombes , Sudip Chakravarty

Currents can induce spin excitations in antiferromagnets, even when they are insulating. We investigate how spin transfer can cause antiferromagnetic resonance in bilayers and trilayers that consist of one antiferromagnetic insulator and…

介观与纳米尺度物理 · 物理学 2018-02-28 Øyvind Johansen , Hans Skarsvåg , Arne Brataas

The spin dynamics and spin relaxation of itinerant electrons in quantum wires with spin-orbit coupling is reviewed. We give an introduction to spin dynamics, and review spin-orbit coupling mechanisms in semiconductors. The spin diffusion…

介观与纳米尺度物理 · 物理学 2010-12-17 Paul Wenk , Stefan Kettemann

Several different experimental techniques have been used in efforts to measure the spin Hall conductivity and the spin Hall angle in Pt samples at room temperature, with results that disagree by more than a factor of 20, with spin Hall…

介观与纳米尺度物理 · 物理学 2012-03-07 Luqiao Liu , R. A. Buhrman , D. C. Ralph

An electric current flowing in a ferromagnetic metal carries spin angular momentum, i.e. it is spin-polarized. Here, we measure the spin-wave Doppler shift induced by the transfer of angular momentum from the diffusive spin-polarized…

We present new mechanism for manipulation of the spin-wave amplitude through the use of the dynamic charge-mediated magnetoelectric effect in ultrathin multilayers composed of dielectric thin-film capacitors separated by a ferromagnetic…

介观与纳米尺度物理 · 物理学 2020-01-22 Piotr Graczyk , Maciej Krawczyk

We present theoretical studies of the influence of spin orbit coupling on the spin wave excitations of the Fe monolayer and bilayer on the W(110) surface. The Dzyaloshinskii-Moriya interaction is active in such films, by virtue of the…

介观与纳米尺度物理 · 物理学 2010-10-19 A. T. Costa , R. B. Muniz , S. Lounis , A. B. Klautau , D. L. Mills

This paper presents the boundary conditions needed for drift-diffusion models to treat interfaces with spin-orbit coupling. Using these boundary conditions for heavy metal/ferromagnet bilayers, solutions of the drift-diffusion equations…

介观与纳米尺度物理 · 物理学 2016-09-21 V. P. Amin , M. D. Stiles

The ability to switch magnetic elements by spin-orbit-induced torques has recently attracted much attention for a path towards high-performance, non-volatile memories with low power consumption. Realizing efficient spin-orbit-based…

Spin wave, the collective excitation of magnetic order, is one of the fundamental angular momentum carriers in magnetic systems. Understanding the spin wave propagation in magnetic textures lies in the heart of developing pure magnetic…

材料科学 · 物理学 2021-06-09 Jin Lan , Weichao Yu , Jiang Xiao

We study theoretically the spin wave emission from a moving domain wall in a ferromagnet. Introducing a deformation mode describing a modulation of the wall thickness in the collective coordinate description, we show that thickness…

介观与纳米尺度物理 · 物理学 2020-07-01 Gen Tatara , Rubén M. Otxoa de Zuazola

We show that the resonant coupling of phonons and magnons can be exploited to generate spin currents at room temperature. Surface acoustic wave (SAW) pulses with a frequency of 1.55 GHz and duration of 300 ns provide coherent elastic waves…

材料科学 · 物理学 2013-10-30 M. Weiler , H. Huebl , F. S. Goerg , F. D. Czeschka , R. Gross , S. T. B. Goennenwein

Manipulation of the magnetization in heavy-metal/ferromagnetic bilayers via the spin-orbit torque requires high spin Hall conductivity of the heavy metal. We measure inverse spin Hall voltage using a co-planar wave-guide based broadband…

介观与纳米尺度物理 · 物理学 2018-09-12 Akash Kumar , Rajni Bansal , Sujeet Chaudhary , P. K. Muduli

We study the potential of all-electrical inductive techniques for the spectroscopy of propagating forward volume spin waves. We develop a one-dimensional model to account for the electrical signature of spin-wave reflection and transmission…

介观与纳米尺度物理 · 物理学 2020-11-18 M. Sushruth , M. Grassi , K. Ait-Oukaci , D. Stoeffler , Y. Henry , D. Lacour , M. Hehn , U Bhaskar , M. Bailleul , T. Devolder , J. -P. Adam

The propagation of edge localized spin waves (E-SWs) in yttrium iron garnet (YIG) microstripes with/without the proximate magnetic microstructures is investigated by micromagnetic simulations. A splitting of the dispersion curve with the…

We investigated the microwave-induced DC response of spin wave resonance (SWR) in a permalloy thin strip via electrical detection. Our experimental results obtained by sweeping the external field reveal that: 1. the amplitude of SWR signals…

材料科学 · 物理学 2013-08-15 Ziqian Wang , Wei Lu , Bogen Wang

We investigate the dipolar-exchange spin wave spectrum in thin ferromagnetic bilayers with inplane magnetization, incorporating interlayer exchange coupling and intra- and interlayer dipolar interactions. In the continuum approximation we…

介观与纳米尺度物理 · 物理学 2026-05-05 Rob den Teuling , Ritesh Das , Artem V. Bondarenko , Elena V. Tartakovskaya , Gerrit E. W. Bauer , Yaroslav M. Blanter