Numerical studies on antiferromagnetic skyrmions in nanodisks by means of a new quantum simulation approach

被引：12

作者：

Liu, Zhaosen ^{[1
]}

Ian, Hou ^{[2
]}

机构：

[1] Nanjing Univ Informat Sci & Technol, Dept Appl Phys, Nanjing 210044, Jiangsu, Peoples R China

[2] Univ Macau, FST, Inst Appl Phys & Mat Engn, Macau, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2016年 / 649卷

基金：

中国国家自然科学基金;

关键词：

MAGNETIC VORTEX STATES; REAL-SPACE OBSERVATION; MORIYA INTERACTION; LATTICE;

D O I：

10.1016/j.cplett.2016.02.054

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We employ a new quantum simulation approach to study the magnetism of nanodisks with Dzyaloshinsky-Moriya (DM) interaction. We find that a weak external magnetic field normal to the disk plane cannot obviously affect the single AFM skyrmion structure on small disk; but if it is sufficiently strong, it can destroy the AFM skyrmion completely. By increasing DM interaction, more self-organized magnetic domains appear, the average distance of the neighboring domains agrees well with a grid theory. In this case, a magnetic anisotropy normal to the disk plane can re-construct AFM skyrmion, providing a way for experimentalists to create AMF skyrmions. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：135 / 140

页数：6

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