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Title: Magnetization cusp in a thin AuFe spin glass film in high magnetic fields
Authors: Fritzsche, Helmut ×
Root, John
Temst, Kristiaan
Van Haesendonck, Christian #
Issue Date: Nov-2006
Publisher: North-Holland
Series Title: Physica B, Condensed Matter vol:385 pages:378-380
Abstract: We performed polarized neutron reflectometry measurements on a 78 nm-thick Au97Fe3 film prepared on a thermally oxidized Si wafer. The measurements were done on the C5 spectrometer at Chalk River in reflectometry mode. We determined the magnetization of the specimen in a vertical magnetic field of 6 T in a temperature range from 300 to 1.5 K. We observed a cusp in the magnetization at about 10 K, close to the spin-glass freezing temperature of 16 K of a bulk Au97Fe3 alloy. From the fit to the reflectivity data we can infer a magnetic moment of 0.63 mu(B) per Fe atom at the cusp position which is a large reduction compared to the bulk value of 1.2 mu(B) per Fe atom. Crown Copyright (c) 2006 Published by Elsevier B.V. All rights reserved.
URI: 
ISSN: 0921-4526
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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