A polarized neutron reflectometry study of the spin glass freezing in a 29?nm thick AuFe film

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DOIResolve DOI: http://doi.org/10.1016/j.physb.2007.02.020
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TypeArticle
Journal titlePhysica. B, Condensed matter
Volume397
Issue1-2
Pages4749; # of pages: 3
SubjectDilute alloys; Polarized neutron reflectometry; Spin glasses; Thin films
AbstractWe performed polarized neutron reflectometry (PNR) experiments on a 29?nm thick Au93Fe7 film in a temperature range from 295?K down to 2?K in a vertical magnetic field up to 6?T. These high-field experiments were performed on the C5 spectrometer in Chalk River, Canada, using a split-pair cryomagnet. The magnetization as determined by PNR can be described with a Brillouin function from 295?K down to 50?K assuming the magnetic moment of isolated Fe atoms, i.e. 4[mu]B per Fe atom. Below 50?K the onset of the spin-glass freezing is observed as a strong deviation from this Brillouin type behavior of isolated atoms.
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AffiliationNational Research Council Canada; NRC Canadian Neutron Beam Centre
Peer reviewedNo
NPARC number12338249
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Record identifier6081a81b-47a1-4f99-938e-f4e463fd94eb
Record created2009-09-10
Record modified2016-05-09
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