Abstract

Magnetic Skyrmions are energetically stable entities formed in a ferromagnet with a diameter of typically below 100 nm and are easily displaceable using an electrical current of 102 A/cm2, resulting the Skyrmions to be more advantageous than domain walls for spintronic memory applications. Here, we demonstrated switching of a chirality of magnetic Skyrmions formed in magnetic thin films by introducing a pulsed heat spot using micromagnetic simulation. Skyrmions are found to expand with a pulsed heat spot, which induces the magnetic moments surrounding the Skyrmion to rotate by this expansion, followed by the chirality switching of the Skyrmion. Such simple controllability can be used as a fundamental building block for memory and logic devices using the chirality of Skyrmions as a data bit.

Details

Title
Switching of Skyrmion chirality by local heating
Author
Nakatani, Yoshinobu 1 ; Yamada, Keisuke 2 ; Hirohata, Atsufumi 3   VIAFID ORCID Logo 

 Graduate school of Informatics and Engineering, University of Electro- Communications, Chohu, Tokyo, Japan 
 Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu-shi, Gifu, Japan 
 Department of Electronic Engineering, University of York, York, United Kingdom 
Pages
1-7
Publication year
2019
Publication date
Sep 2019
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2292054553
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.