Topological spin textures in a two-dimensional MnBi2(Se, Te)4 Janus material

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2021-08-18 DOI:10.1063/5.0057794

Jiawei Jiang, Xiang Liu, Rui Li, W. Mi

引用次数: 19

Abstract

Realizing and controlling topological spin textures are widely attractive for their promising applications in information and communication technology. Here, using first-principles calculations and micromagnetic simulations, a stable magnetic Janus material MnBi2(Se, Te)4 with an inherent Dzyaloshinskii–Moriya interaction is proposed to stabilize a variety of topological magnetic structures under temperature and magnetic fields. Furthermore, a sub-10 nm skyrmion can spontaneously form in the absence of magnetic fields in MnBi2(Se, Te)4 by using van der Waals heterostructure engineering. These results provide a promising route for the generation and modulation of topological spin textures in two-dimensional spintronic devices.

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二维MnBi2（Se，Te）4Janus材料中的拓扑自旋织构

拓扑自旋织构的实现和控制在信息通信技术中有着广阔的应用前景。本文利用第一性原理计算和微磁模拟，提出了一种具有固有Dzyaloshinskii-Moriya相互作用的稳定磁性Janus材料MnBi2(Se, Te)4，用于在温度和磁场下稳定各种拓扑磁性结构。此外，利用范德华异质结构工程技术，在没有磁场的情况下，MnBi2(Se, Te)4中可以自发形成10 nm以下的skymion。这些结果为二维自旋电子器件中拓扑自旋织构的产生和调制提供了一条有希望的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.