Mapping the magnetization fine structure of a lattice of Bloch-type skyrmions in an FeGe thin film

被引：27

作者：

Kovacs, Andras ^{[1
,2
]}

Caron, Jan ^{[1
,2
]}

Savchenko, Andrii S. ^{[3
]}

Kiselev, Nikolai S. ^{[2
,4
,5
]}

Shibata, Kiyou ^{[6
]}

Li, Zi-An ^{[7
]}

Kanazawa, Naoya ^{[8
]}

Tokura, Yoshinori ^{[6
,8
]}

Blugel, Stefan ^{[2
,4
,5
]}

Dunin-Borkowski, Rafal E. ^{[1
,2
]}

机构：

[1] Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, D-52425 Julich, Germany

[2] Forschungszentrum Julich, Peter Grunberg Inst, D-52425 Julich, Germany

[3] Natl Acad Sci Ukraine, Donetsk Inst Phys & Engn, UA-03028 Kiev, Ukraine

[4] Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany

[5] JARA, D-52425 Julich, Germany

[6] RIKEN, Ctr Emergent Matter Sci, Wako, Saitama 3510198, Japan

[7] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[8] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

来源：

APPLIED PHYSICS LETTERS | 2017年 / 111卷 / 19期

基金：

欧洲研究理事会; 日本学术振兴会;

关键词：

TRANSMISSION ELECTRON-MICROSCOPY; HOLOGRAPHY;

D O I：

10.1063/1.5004394

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bloch-type magnetic skyrmions are nanoscale vortex-like spin objects that form densely packed lattice arrangements in B20-type chiral magnets in the presence of a magnetic field. Here, we use off-axis electron holography, in combination with an iterative model-based reconstruction algorithm, to study the geometries of the projected in-plane magnetization distributions of individual skyrmions in an FeGe thin film as a function of applied magnetic field. We compare our results with micromagnetic simulations and find a departure from magnetic chirality in the transition regions between adjacent skyrmions when they are in lattice arrangements. (C) 2017 Author(s).

引用

页数：5

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