Current-induced interactions of multiple domain walls in magnetic quantum wires

N. Sedlmayr; V. K. Dugaev; J. Berakdar

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Current-induced interactions of multiple domain walls in magnetic quantum wires

机译：磁量子线中多个畴壁的电流感应相互作用

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摘要

We show that an applied charge current in a magnetic nanowire containing domain walls (DWs) results in an interaction between DWs mediated by spin-dependent interferences of the scattered carriers. The energy and torque associated with this interaction show an oscillatory behavior as a function of the mutual DW orientations and separations, thus affecting the DWs' arrangements and shapes. Based on the derived DWs interaction energy and torque we calculate DW dynamics and uncover potential applications of interacting DWs as a tunable nanomechanical oscillator. We also discuss the effect of impurities on the DW interaction.

机译：我们显示，在包含畴壁（DWs）的磁性纳米线中施加的电荷电流会导致DW之间的相互作用，这些相互作用是由分散的载流子的自旋相关干扰介导的。与这种相互作用相关的能量和扭矩根据DW相互之间的方向和间距表现出振荡行为，从而影响了DW的布置和形状。基于导出的DW的相互作用能和扭矩，我们计算DW动力学并发现相互作用的DW作为可调纳米机械振荡器的潜在应用。我们还将讨论杂质对DW相互作用的影响。

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来源
《Physical review》 |2009年第17期|174422.1-174422.5|共5页
作者
N. Sedlmayr; V. K. Dugaev; J. Berakdar;
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作者单位

Department of Physics, Martin-Lnther-Universitaet Halle-Wittenberg, Heinrich-Damerow-Str. 4, 06120 Halle, Germany;

Department of Physics, Rzeszow University of Technology, al. Powstancow Warszawy 6, 35-959 Rzeszow, Poland Department of Physics and CFIF, Instituto Superior Tecnico, TU Lisbon, av. Rovisco Pais, 1049-001 Lisbon, Portugal;

Department of Physics, Martin-Lnther-Universitaet Halle-Wittenberg, Heinrich-Damerow-Str. 4, 06120 Halle, Germany;

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正文语种 eng
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关键词
domain walls and domain structure; magnetization reversal mechanisms; magnetic properties of nanostructures;

机译：畴壁和畴结构;磁化反转机制;纳米结构的磁性;

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1. Current-induced domain wall motion attributed to spin Hall effect and Dzyaloshinsky-Moriya interaction in Pt/GdFeCo (100 nm) magnetic wire [J] . Kurokawa Yuichiro, Kawamoto Masaya, Awano Hiroyuki Japanese journal of applied physics . 2016,第7S3期

机译：电流引起的畴壁运动归因于Pt / GdFeCo（100 nm）电磁线中的自旋霍尔效应和Dzyaloshinsky-Moriya相互作用
2. Spin-orbit torque-driven current-induced domain wall motion in Gd-Fe magnetic wires [J] . Kurokawa Yuichiro, Wakae Masakazu, Sumi Satoshi, Japanese journal of applied physics . 2019,第3期

机译：Gd-Fe电磁线中自旋轨道转矩驱动的电流感应畴壁运动
3. Multilayered current-induced domain wall motion in Pt/Tb-Co/Ta/Tb-Co/Pt magnetic wire [J] . Yuichiro Kurokawa, Hiroyuki Awano AIP Advances . 2018,第2期

机译：PT / TB-CO / TA / TB-CO / PT磁线中的多层电流诱导的畴壁运动
4. Study on current-induced domain-wall motions of antiferromagnetically coupled layered magnetic wires with various interlayer thickness [C] . Musashi Shimazaki, Tatsuro Ohmasa, Tomoya Sakata, 2019年第66回応用物理学会春季学術講演会講演予稿集 . 2019

机译：层间厚度不同的反铁磁耦合层状电磁线的电流诱导畴壁运动研究
5. Spin torque and interactions in ferromagnetic semiconductor domain walls [D] . Golovatski, Elizabeth Ann 2011

机译：自旋扭矩及其在铁磁半导体畴壁中的相互作用
6. Discontinuous properties of current-induced magnetic domain wall depinning [O] . X. F. Hu, J. Wu, D. X. Niu, -1

机译：电流感应磁畴壁去钉的不连续特性
7. Current-induced interactions of multiple domain walls in magnetic quantum wires [O] . Sedlmayr, N., Dugaev, V. K., Berakdar, J. 2009

机译：磁场中多畴壁的电流诱导相互作用量子线

Current-induced interactions of multiple domain walls in magnetic quantum wires

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