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相关论文: Thermal Spin Waves from Accelerating Domain Walls …

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We theoretically investigate domain wall motion in an antiferromagnetic insulator layer caused by thermally generated spin currents in an adjacent spin-split superconductor layer. An uncompensated antiferromagnet interface enables the two…

超导电性 · 物理学 2021-03-17 G. A. Bobkov , I. V. Bobkova , A. M. Bobkov , Akashdeep Kamra

We examine theoretically the role of spin-waves on current-induced domain wall dynamics in a ferromagnetic wire. At room temperature, we find that an interaction between the domain wall and the spin waves appears when there is a finite…

材料科学 · 物理学 2015-05-13 Yann Le Maho , Joo Von Kim , Gen Tatara

Spin waves in antiferromagnets are linearly or circularly polarized. Depending on the polarization, traversing spin waves alter the staggered field in a qualitatively different way. We calculate the drift velocity of a moving domain wall as…

介观与纳米尺度物理 · 物理学 2014-04-11 Erlend Grytli Tveten , Alireza Qaiumzadeh , Arne Brataas

Antiferromagnetic spintronics is an emerging research field which aims to utilize antiferromagnets as core elements in spintronic devices. A central motivation toward this direction is that antiferromagnetic spin dynamics is expected to be…

We theoretically investigate dynamics of antiferromagnetic domain walls driven by spin-orbit torques in antiferromagnet/heavy metal bilayers. We show that spin-orbit torques drive antiferromagnetic domain walls much faster than…

Spin waves (or magnons) interact with magnetic domain walls (DWs) in a complicated way that a DW can propagate either along or against magnon flow. However, thermally activated magnons always drive a DW to the hotter region of a nanowire of…

介观与纳米尺度物理 · 物理学 2015-06-18 X. S. Wang , X. R. Wang

We theoretically study the interaction of magnons, quanta of spin waves, and a domain wall in a one-dimensional easy-axis antiferromagnet in the presence of an external magnetic field applied along the easy axis. To this end, we begin by…

介观与纳米尺度物理 · 物理学 2020-06-19 Pengtao Shen , Yaroslav Tserkovnyak , Se Kwon Kim

We predict a mechanism to controllably manipulate domain walls in kagome antiferromagnets via a single linearly polarized spin-wave source. We show by means of atomistic spin dynamics simulations of antiferromagnets with kagome structure…

介观与纳米尺度物理 · 物理学 2021-10-14 Davi R. Rodrigues , Akshaykumar Salimath , Karin Everschor-Sitte , Kjetil M. D. Hals

We theoretically study the motion of a magnetic domain wall induced by transverse elastic waves in a one-dimensional magnetic wire, which respects both rotational and translational symmetries. By invoking the conservation of the associated…

介观与纳米尺度物理 · 物理学 2016-12-07 Se Kwon Kim , Daniel Hill , Yaroslav Tserkovnyak

Control of magnetic domain wall motion holds promise for efficient manipulation and transfer of magnetically stored information. Thermal magnon currents, generated by temperature gradients, can be used to move magnetic textures, from domain…

We theoretically investigate magnon heat transport in an antiferromagnetic (AFM) insulator containing a domain wall (DW) in the presence of a magnetic field applied along the easy axis. We show that the intrinsic spin of the DW couples to…

介观与纳米尺度物理 · 物理学 2024-12-30 Ehsan Faridi , Se Kwon Kim , Giovanni Vignale

We theoretically study the interaction of spin waves and a domain wall in a quasi-one-dimensional easy-cone ferromagnet. The gapless spin waves on top of a domain wall are found to exhibit finite reflection in contrast to the well-known…

介观与纳米尺度物理 · 物理学 2024-07-10 Wooyon Kim , Se Kwon Kim

We present a theoretical study of heat transport in electrically insulating ferromagnetic wires containing a domain wall. In the regime of validity of continuum micromagnetism a domain wall is found to have no effect on the heat…

介观与纳米尺度物理 · 物理学 2012-09-07 Peng Yan , Gerrit E. W. Bauer

Thermally activated domain-wall (DW) motion driven by magnetic field and electric current is investigated experimentally in out-of-plane magnetized Pt(Co/Pt)$_3$ multilayers. We directly extract the thermal activation energy barrier for DW…

材料科学 · 物理学 2014-11-21 Satoru Emori , Chinedum K. Umachi , David C. Bono , Geoffrey S. D. Beach

Searching for novel spin caloric effects in antiferromagnets we study the properties of thermally activated magnons in the presence of an external spin current and temperature gradient. We predict the spin Peltier effect -- generation of a…

介观与纳米尺度物理 · 物理学 2018-07-04 Olena Gomonay , Kei Yamamoto , Jairo Sinova

We theoretically study the dynamics of ferrimagnetic domain walls in the presence of Dzyaloshinskii-Moriya interaction. We find that an application of a DC magnetic field can induce terahertz spin-wave emission by driving ferrimagnetic…

The control of magnetic domain walls is essential for the magnetic-based memory and logic applications. As an elementary excitation of magnetic order, spin wave is capable of moving magnetic domain walls just as the conducting electric…

材料科学 · 物理学 2018-10-18 Weichao Yu , Jin Lan , Jiang Xiao

We study two reciprocal thermal effects in the ferromagnetic semiconductor (Ga,Mn)As by scattering theory: domain wall motion induced by a temperature gradient as well as heat currents pumped by a moving domain wall. The effective…

介观与纳米尺度物理 · 物理学 2010-03-03 Kjetil M. D. Hals , Arne Brataas , Gerrit E. W. Bauer

We investigate ferrimagnetic domain wall dynamics induced by circularly polarized spin waves theoretically and numerically. We find that the direction of domain wall motion depends on both the circular polarization of spin waves and the…

材料科学 · 物理学 2019-11-06 Se-Hyeok Oh , Se Kwon Kim , Jiang Xiao , Kyung-Jin Lee

Ultrafast dynamics of antiferromagnetic materials is an appealing feature for novel spintronic devices. Several experiments have shown that both, the static states and the dynamical behavior of the antiferromagnetic order, are strictly…

介观与纳米尺度物理 · 物理学 2024-01-24 Luis Sanchez-Tejerina , Vito Puliafito , Pedram Khalili Amiri , Mario Carpentieri , Giovanni Finocchio
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