Current-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interaction

Current-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interaction

The authors have investigated magnetic domain wall (DW) motion induced by electrical current in the perpendicularly magnetized Pt/Co/Pd and Pd/Co/Pt structures. In these systems, owing to the spin-orbit torque (SOT) and the interfacial Dzyaloshinskii-Moriya interaction (DMI), the DW moves in the cur...

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Main Authors: Yicheng Guan, Tomohiro Koyama, Daichi Chiba
Format: Article
Language:English
Published: AIP Publishing LLC 2017-08-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4986264
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spelling doaj-7e813eeb53d5402d87ea048904a3a9d22020-11-24T23:29:15ZengAIP Publishing LLCAIP Advances2158-32262017-08-0178085123085123-610.1063/1.4986264088708ADVCurrent-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interactionYicheng Guan0Tomohiro Koyama1Daichi Chiba2Department of Applied Physics, The University of Tokyo, Bunkyo, Tokyo 113-8656, JapanDepartment of Applied Physics, The University of Tokyo, Bunkyo, Tokyo 113-8656, JapanDepartment of Applied Physics, The University of Tokyo, Bunkyo, Tokyo 113-8656, JapanThe authors have investigated magnetic domain wall (DW) motion induced by electrical current in the perpendicularly magnetized Pt/Co/Pd and Pd/Co/Pt structures. In these systems, owing to the spin-orbit torque (SOT) and the interfacial Dzyaloshinskii-Moriya interaction (DMI), the DW moves in the current flowing direction. On the other hand, the threshold current density, DW velocity and magnitude of the DMI were found to be different between them even though the same combination of the materials are used. This results suggest that the SOT induced DW motion is significantly influenced by the stack sequence of the film.http://dx.doi.org/10.1063/1.4986264
collection DOAJ
language English
format Article
sources DOAJ
author Yicheng Guan
Tomohiro Koyama
Daichi Chiba
spellingShingle Yicheng Guan
Tomohiro Koyama
Daichi Chiba
Current-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interaction
AIP Advances
author_facet Yicheng Guan
Tomohiro Koyama
Daichi Chiba
author_sort Yicheng Guan
title Current-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interaction
title_short Current-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interaction
title_full Current-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interaction
title_fullStr Current-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interaction
title_full_unstemmed Current-induced magnetic domain wall motion in Pt/Co/Pd and Pd/Co/Pt structures with opposite sign of Dzyaloshinskii-Moriya interaction
title_sort current-induced magnetic domain wall motion in pt/co/pd and pd/co/pt structures with opposite sign of dzyaloshinskii-moriya interaction
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2017-08-01
description The authors have investigated magnetic domain wall (DW) motion induced by electrical current in the perpendicularly magnetized Pt/Co/Pd and Pd/Co/Pt structures. In these systems, owing to the spin-orbit torque (SOT) and the interfacial Dzyaloshinskii-Moriya interaction (DMI), the DW moves in the current flowing direction. On the other hand, the threshold current density, DW velocity and magnitude of the DMI were found to be different between them even though the same combination of the materials are used. This results suggest that the SOT induced DW motion is significantly influenced by the stack sequence of the film.
url http://dx.doi.org/10.1063/1.4986264
work_keys_str_mv AT yichengguan currentinducedmagneticdomainwallmotioninptcopdandpdcoptstructureswithoppositesignofdzyaloshinskiimoriyainteraction
AT tomohirokoyama currentinducedmagneticdomainwallmotioninptcopdandpdcoptstructureswithoppositesignofdzyaloshinskiimoriyainteraction
AT daichichiba currentinducedmagneticdomainwallmotioninptcopdandpdcoptstructureswithoppositesignofdzyaloshinskiimoriyainteraction
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