Magnetic skyrmionium diode with a magnetic anisotropy voltage gating

Junlin Wang; Jing Xia; Xichao Zhang; Xiangyu Zheng; Guanqi Li; Li Chen; Yan Zhou; Jing Wu; Haihong Yin; Roy Chantrell; Yongbing Xu

doi:10.1063/5.0025124

Magnetic skyrmionium diode with a magnetic anisotropy voltage gating

Junlin Wang
, Jing Xia
, Xichao Zhang
, Xiangyu Zheng
, Guanqi Li
, Li Chen
, Yan Zhou^*
, Jing Wu
, Haihong Yin
, Roy Chantrell
, Yongbing Xu^*

^*Corresponding author for this work

University of York
Nanjing University
The Chinese University of Hong Kong, Shenzhen
University of Leeds
Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education
Nantong University

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

The magnetic skyrmionium can be seen as a coalition of two magnetic skyrmions with opposite topological charges and has potential applications in next-generation spintronic devices. Here, we report the current-driven dynamics of a skyrmionium in a ferromagnetic nanotrack with the voltage-controlled magnetic anisotropy. The pinning and depinning of a skyrmionium controlled by the voltage gate are investigated. The current-driven skyrmionium can be used to mimic the skyrmionium diode effect in the nanotrack with a voltage gate. We have further studied the skyrmionium dynamics in the nanotrack driven by a magnetic anisotropy gradient in the absence of spin current. The performance of a single wedge-shaped voltage gate at different temperatures is studied. Our results may provide useful guidelines for the design of voltage-controlled and skyrmionium-based spintronic devices.

Original language	English
Article number	202401
Journal	Applied Physics Letters
Volume	117
Issue number	20
DOIs	https://doi.org/10.1063/5.0025124
State	Published - 16 Nov 2020
Externally published	Yes

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10.1063/5.0025124

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title = "Magnetic skyrmionium diode with a magnetic anisotropy voltage gating",

abstract = "The magnetic skyrmionium can be seen as a coalition of two magnetic skyrmions with opposite topological charges and has potential applications in next-generation spintronic devices. Here, we report the current-driven dynamics of a skyrmionium in a ferromagnetic nanotrack with the voltage-controlled magnetic anisotropy. The pinning and depinning of a skyrmionium controlled by the voltage gate are investigated. The current-driven skyrmionium can be used to mimic the skyrmionium diode effect in the nanotrack with a voltage gate. We have further studied the skyrmionium dynamics in the nanotrack driven by a magnetic anisotropy gradient in the absence of spin current. The performance of a single wedge-shaped voltage gate at different temperatures is studied. Our results may provide useful guidelines for the design of voltage-controlled and skyrmionium-based spintronic devices.",

author = "Junlin Wang and Jing Xia and Xichao Zhang and Xiangyu Zheng and Guanqi Li and Li Chen and Yan Zhou and Jing Wu and Haihong Yin and Roy Chantrell and Yongbing Xu",

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year = "2020",

month = nov,

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doi = "10.1063/5.0025124",

language = "英语",

volume = "117",

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T1 - Magnetic skyrmionium diode with a magnetic anisotropy voltage gating

AU - Wang, Junlin

AU - Xia, Jing

AU - Zhang, Xichao

AU - Zheng, Xiangyu

AU - Li, Guanqi

AU - Chen, Li

AU - Zhou, Yan

AU - Wu, Jing

AU - Yin, Haihong

AU - Chantrell, Roy

AU - Xu, Yongbing

PY - 2020/11/16

Y1 - 2020/11/16

N2 - The magnetic skyrmionium can be seen as a coalition of two magnetic skyrmions with opposite topological charges and has potential applications in next-generation spintronic devices. Here, we report the current-driven dynamics of a skyrmionium in a ferromagnetic nanotrack with the voltage-controlled magnetic anisotropy. The pinning and depinning of a skyrmionium controlled by the voltage gate are investigated. The current-driven skyrmionium can be used to mimic the skyrmionium diode effect in the nanotrack with a voltage gate. We have further studied the skyrmionium dynamics in the nanotrack driven by a magnetic anisotropy gradient in the absence of spin current. The performance of a single wedge-shaped voltage gate at different temperatures is studied. Our results may provide useful guidelines for the design of voltage-controlled and skyrmionium-based spintronic devices.

AB - The magnetic skyrmionium can be seen as a coalition of two magnetic skyrmions with opposite topological charges and has potential applications in next-generation spintronic devices. Here, we report the current-driven dynamics of a skyrmionium in a ferromagnetic nanotrack with the voltage-controlled magnetic anisotropy. The pinning and depinning of a skyrmionium controlled by the voltage gate are investigated. The current-driven skyrmionium can be used to mimic the skyrmionium diode effect in the nanotrack with a voltage gate. We have further studied the skyrmionium dynamics in the nanotrack driven by a magnetic anisotropy gradient in the absence of spin current. The performance of a single wedge-shaped voltage gate at different temperatures is studied. Our results may provide useful guidelines for the design of voltage-controlled and skyrmionium-based spintronic devices.

UR - https://www.scopus.com/pages/publications/85096545390

U2 - 10.1063/5.0025124

DO - 10.1063/5.0025124

M3 - 文章

AN - SCOPUS:85096545390

SN - 0003-6951

VL - 117

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 20

M1 - 202401

ER -

Magnetic skyrmionium diode with a magnetic anisotropy voltage gating

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