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Title: Electric field-induced creation and directional motion of domain walls and skyrmion bubbles
Authors: Ma, Chuang
Zhang, Xichao
Xia, Jing
Ezawa, Motohiko
Jiang, Wanjun
Ono, Teruo
Piramanayagam, S. N.
Morisako, Akimitsu
Zhou, Yan
Liu, Xiaoxi
Keywords: Science::Physics
Issue Date: 2019
Source: Ma, C., Zhang, X., Xia, J., Ezawa, M., Jiang, W., Ono, T., Piramanayagam, S. N., Morisako, A., Zhou, Y. & Liu, X. (2019). Electric field-induced creation and directional motion of domain walls and skyrmion bubbles. Nano Letters, 19(1), 353-361.
Journal: Nano Letters
Abstract: Magnetization dynamics driven by an electric field could provide long-term benefits to information technologies because of its ultralow power consumption. Meanwhile, the Dzyaloshinskii-Moriya interaction in interfacially asymmetric multilayers consisting of ferromagnetic and heavy-metal layers can stabilize topological spin textures, such as chiral domain walls, skyrmions, and skyrmion bubbles. These topological spin textures can be controlled by an electric field and hold promise for building advanced spintronic devices. Here, we present an experimental and numerical study on the electric field-induced creation and directional motion of topological spin textures in magnetic multilayer films and racetracks with thickness gradient and interfacial Dzyaloshinskii-Moriya interaction at room temperature. We find that the electric field-induced directional motion of chiral domain wall is accompanied by the creation of skyrmion bubbles at certain conditions. We also demonstrate that the electric field variation can induce motion of skyrmion bubbles. Our findings may provide opportunities for developing skyrmion-based devices with ultralow power consumption.
ISSN: 1530-6984
DOI: 10.1021/acs.nanolett.8b03983
Rights: © 2018 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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