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Creating zero-field skyrmions in exchange-biased multilayers through X-ray illumination

Skyrmions, magnetic textures with topological stability, hold promises for high-density and energy-efficient information storage devices owing to their small size and low driving-current density. Precise creation of a single nanoscale skyrmion is a prerequisite to further understand the skyrmion phy...

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Autores principales: Guang, Yao, Bykova, Iuliia, Liu, Yizhou, Yu, Guoqiang, Goering, Eberhard, Weigand, Markus, Gräfe, Joachim, Kim, Se Kwon, Zhang, Junwei, Zhang, Hong, Yan, Zhengren, Wan, Caihua, Feng, Jiafeng, Wang, Xiao, Guo, Chenyang, Wei, Hongxiang, Peng, Yong, Tserkovnyak, Yaroslav, Han, Xiufeng, Schütz, Gisela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7031520/
https://www.ncbi.nlm.nih.gov/pubmed/32075968
http://dx.doi.org/10.1038/s41467-020-14769-0
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author Guang, Yao
Bykova, Iuliia
Liu, Yizhou
Yu, Guoqiang
Goering, Eberhard
Weigand, Markus
Gräfe, Joachim
Kim, Se Kwon
Zhang, Junwei
Zhang, Hong
Yan, Zhengren
Wan, Caihua
Feng, Jiafeng
Wang, Xiao
Guo, Chenyang
Wei, Hongxiang
Peng, Yong
Tserkovnyak, Yaroslav
Han, Xiufeng
Schütz, Gisela
author_facet Guang, Yao
Bykova, Iuliia
Liu, Yizhou
Yu, Guoqiang
Goering, Eberhard
Weigand, Markus
Gräfe, Joachim
Kim, Se Kwon
Zhang, Junwei
Zhang, Hong
Yan, Zhengren
Wan, Caihua
Feng, Jiafeng
Wang, Xiao
Guo, Chenyang
Wei, Hongxiang
Peng, Yong
Tserkovnyak, Yaroslav
Han, Xiufeng
Schütz, Gisela
author_sort Guang, Yao
collection PubMed
description Skyrmions, magnetic textures with topological stability, hold promises for high-density and energy-efficient information storage devices owing to their small size and low driving-current density. Precise creation of a single nanoscale skyrmion is a prerequisite to further understand the skyrmion physics and tailor skyrmion-based applications. Here, we demonstrate the creation of individual skyrmions at zero-field in an exchange-biased magnetic multilayer with exposure to soft X-rays. In particular, a single skyrmion with 100-nm size can be created at the desired position using a focused X-ray spot of sub-50-nm size. This single skyrmion creation is driven by the X-ray-induced modification of the antiferromagnetic order and the corresponding exchange bias. Furthermore, artificial skyrmion lattices with various arrangements can be patterned using X-ray. These results demonstrate the potential of accurate optical control of single skyrmion at sub-100 nm scale. We envision that X-ray could serve as a versatile tool for local manipulation of magnetic orders.
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spelling pubmed-70315202020-03-04 Creating zero-field skyrmions in exchange-biased multilayers through X-ray illumination Guang, Yao Bykova, Iuliia Liu, Yizhou Yu, Guoqiang Goering, Eberhard Weigand, Markus Gräfe, Joachim Kim, Se Kwon Zhang, Junwei Zhang, Hong Yan, Zhengren Wan, Caihua Feng, Jiafeng Wang, Xiao Guo, Chenyang Wei, Hongxiang Peng, Yong Tserkovnyak, Yaroslav Han, Xiufeng Schütz, Gisela Nat Commun Article Skyrmions, magnetic textures with topological stability, hold promises for high-density and energy-efficient information storage devices owing to their small size and low driving-current density. Precise creation of a single nanoscale skyrmion is a prerequisite to further understand the skyrmion physics and tailor skyrmion-based applications. Here, we demonstrate the creation of individual skyrmions at zero-field in an exchange-biased magnetic multilayer with exposure to soft X-rays. In particular, a single skyrmion with 100-nm size can be created at the desired position using a focused X-ray spot of sub-50-nm size. This single skyrmion creation is driven by the X-ray-induced modification of the antiferromagnetic order and the corresponding exchange bias. Furthermore, artificial skyrmion lattices with various arrangements can be patterned using X-ray. These results demonstrate the potential of accurate optical control of single skyrmion at sub-100 nm scale. We envision that X-ray could serve as a versatile tool for local manipulation of magnetic orders. Nature Publishing Group UK 2020-02-19 /pmc/articles/PMC7031520/ /pubmed/32075968 http://dx.doi.org/10.1038/s41467-020-14769-0 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Guang, Yao
Bykova, Iuliia
Liu, Yizhou
Yu, Guoqiang
Goering, Eberhard
Weigand, Markus
Gräfe, Joachim
Kim, Se Kwon
Zhang, Junwei
Zhang, Hong
Yan, Zhengren
Wan, Caihua
Feng, Jiafeng
Wang, Xiao
Guo, Chenyang
Wei, Hongxiang
Peng, Yong
Tserkovnyak, Yaroslav
Han, Xiufeng
Schütz, Gisela
Creating zero-field skyrmions in exchange-biased multilayers through X-ray illumination
title Creating zero-field skyrmions in exchange-biased multilayers through X-ray illumination
title_full Creating zero-field skyrmions in exchange-biased multilayers through X-ray illumination
title_fullStr Creating zero-field skyrmions in exchange-biased multilayers through X-ray illumination
title_full_unstemmed Creating zero-field skyrmions in exchange-biased multilayers through X-ray illumination
title_short Creating zero-field skyrmions in exchange-biased multilayers through X-ray illumination
title_sort creating zero-field skyrmions in exchange-biased multilayers through x-ray illumination
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7031520/
https://www.ncbi.nlm.nih.gov/pubmed/32075968
http://dx.doi.org/10.1038/s41467-020-14769-0
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