Hysteretic behavior of angular dependence of exchange bias in FeNi/FeMn bilayers

Gao, T.R., Yang, D.Z., Zhou, S.M., Chantrell, R.W., Asselin, P., Wu, X.S. and Du, J. (2007) Hysteretic behavior of angular dependence of exchange bias in FeNi/FeMn bilayers. Physical Review Letters. -. ISSN 0031-9007

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Abstract

For FeNi/FeMn bilayers, the angular dependence of exchange bias shows hysteresis between clockwise and counterclockwise rotations, as a new signature. The hysteresis decreases for thick antiferromagnet layers. Calculations have clearly shown that the orientation of antiferromagnet spins also exhibits hysteresis between clockwise and counterclockwise rotations. This furnishes an interpretation of the macroscopic behavior of the ferromagnetic layer in terms of the thermally driven evolution of the magnetic state of the antiferromagnet layer.

Item Type:	Article
Copyright, Publisher and Additional Information:	© 2007 The American Physical Society. This is an author produced version of a paper published in Physical Review Letters. Uploaded in accordance with the publisher's self-archiving policy.
Keywords:	Rotational hysteresis, Magnetic-anisotropy, Films, Model, Layer
Academic Units:	The University of York > Physics (York)
Depositing User:	Ms Diana Hilmer
Date Deposited:	24 Oct 2007 14:13
Last Modified:	19 Feb 2013 11:34
Published Version:	http://dx.doi.org/10.1103/PhysRevLett.99.057201
Status:	Published
Refereed:	Yes
Related URLs:	http://dx.doi.org/10.1103/PhysRevLett.99...
URI:	http://eprints.whiterose.ac.uk/id/eprint/3424

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