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Magnetic Order of Co0.1Pt0.9 in Proximity of CoPt3

Published online by Cambridge University Press:  10 February 2011

A.L. Shapiro ,
F. Hellman  and
M.R. Fitzsimmons
A.L. Shapiro
Affiliation:
University of California-San Diego, La Jolla, CA 92093
F. Hellman
Affiliation:
University of California-San Diego, La Jolla, CA 92093
M.R. Fitzsimmons
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87545
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Abstract

A polarized neutron reflectometry study of the magnetization density depth profile of a Co0.1Pt0.9-CoPt3 bilayer film found evidence for an induced moment in the Co0.1Pt0.9 overlayer in close proximity to the CoPt3 underlayer. If the moment of Co in these films is that of the bulk, then the μpt = 0.09(1)μB in the overlayer, and μpt = 0.04(1)μB, in the underlayer. In addition, ferromagnetic order of the Co0.1Pt0.9 overlayer was observed 8K above Tc for the material in the bulk.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 517: Symposium F – Wide Bandgap Semiconductors for High Power, High Frequency , January 1998 , 311
Copyright
Copyright © Materials Research Society 1998

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