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Interface magnetic properties of epitaxial Fe-InAs heterostructures

Wu, J., Wang, S., Huttel, Y., Xu, Y.B., Tselepi, M., Bland, J.A.C. and van der Laan, G. (2002) Interface magnetic properties of epitaxial Fe-InAs heterostructures. IEEE Transactions on Magnetics. pp. 2652-2654. ISSN 1941-0069

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Abstract

The growth and interface magnetic properties of epitaxial Fe films grown on InAs (100)-4 x 2 have been studied using low-energy electron diffraction, in situ magneto-optical Kerr effect, and X-ray magnetic circular dichronism. The magnetic properties at room temperature were found to proceed via three phases with thickness; a nonmagnetic phase, a superparamagnetic phase, and a ferromagnetic phase. The initial ferromagnetic phase might be stabilized by interparticle interactions. The films show bulk-like spin moments of 1.90+/-0.15 mu(B) with the thickness above about 20 ML and a large enhancement similar to 260% of the ratio of orbital versus spin moment in the ultrathin region.

Item Type: Article
Copyright, Publisher and Additional Information: © 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: Fe–InAs, interface magnetism, spin electronics, ultrathin films
Institution: The University of York
Academic Units: The University of York > Physics (York)
The University of York > Psychology (York)
Depositing User: Repository Officer
Date Deposited: 18 Dec 2006
Last Modified: 15 Oct 2014 13:10
Published Version: http://dx.doi.org/10.1109/INTMAG.2002.1001069
Status: Published
Refereed: Yes
Related URLs:
URI: http://eprints.whiterose.ac.uk/id/eprint/1842

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