Nanoscale probing of asymmetric magnetization reversal in perpendicularly exchange biased Pt/Co/Pt/IrMn multilayers

Abstract

Asymmetric magnetization reversal in perpendicularly exchange biased Pt/Co/Pt/IrMn multilayers was studied in nanometer scale by non-contact magnetic force microscopy with variable highly localized bipolar magnetic fields of the MFM tip. The hysteresis process of domain nucleation and pinned domain wall motion has been triggered and mapped simultaneously through MFM. Unstable magnetization reversal of submicron domains has been directly observed as well as exchange bias induced asymmetry in the depinning fields for domain wall motion. The current results demonstrated a possible way to locally mapping and manipulating novel magnetic nano-structures such as vortices and Skyrmions.

Metadata

Item Type:	Article
Authors/Creators:	Shi, Z. Zhong, Hai Fan, W. J. Zhou, S. M. Yuan, Jun https://orcid.org/0000-0001-5833-4570
Copyright, Publisher and Additional Information:	© 2018 Published by Elsevier B.V. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.
Dates:	Published: 15 March 2019 Published (online): 28 October 2018 Accepted: 27 October 2018
Institution:	The University of York
Academic Units:	The University of York > Faculty of Sciences (York) > Physics (York)
Depositing User:	Pure (York)
Date Deposited:	05 Feb 2019 16:40
Last Modified:	26 Jan 2025 00:13
Published Version:	https://doi.org/10.1016/j.jmmm.2018.10.128
Status:	Published
Refereed:	Yes
Identification Number:	10.1016/j.jmmm.2018.10.128
Related URLs:	http://www.scopus.com/inward/record.url?...
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:142183