Evolution of magnetization textures in Mn1.4PtSn under  magnetic field

FU Peng; DING Bei; WANG Wenhong; YAO Yuan; LANG Peilin

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Evolution of magnetization textures in Mn1.4PtSn under magnetic field

FU Peng 1,DING Bei 2,WANG Wenhong 2,YAO Yuan 2 *,LANG Peilin 2

1.School of Science, Beijing University of Posts and Telecommunications, Beijing 100876; Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190;Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190;Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190;Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190;School of Science, Beijing University of Posts and Telecommunications, Beijing 100876

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Funding: the Ministry of Science and Technology of the People’s Republic of China （No.Grant Nos. 2022YFB3803902）

Opened online: 3 April 2024

Accepted by: none

Citation: FU Peng,DING Bei,WANG Wenhong.Evolution of magnetization textures in Mn1.4PtSn under magnetic field[OL]. [ 3 April 2024] http://en.paper.edu.cn/en_releasepaper/content/4762933

In this study, we used Lorentz transmission electron microscopy (LTEM) and the transport of intensity equation (TIE) method to investigate the spin structures in the Mn1.4PtSn magnet, which exhibits D2d symmetry. Our goal was to observe how these spin structures evolve under the influence of an external magnetic field. In particular, the application of a perpendicular field was able to modulate the stripe domain widths and induce the formation of anti-skyrmions. While an in-plane magnetic field can control the state of these anti-skyrmions, the coexistence of different skyrmions suggests that the hysteresis properties of the magnet may affect the effectiveness of the field control.

Keywords:Mn1.4PtSn magnet; Lorentz transmission electron microscopy (LTEM); transport of intensity equation (TIE); external magnetic field

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