Magnetic field dependence of the magnetization of a 29 nm thick AuFe spin glass film

We performed polarized neutron reflectometry (PNR) experiments on a 29 nm thick Au93Fe7 film. The measurements were done in a temperature range from 300 K to 2 K in a magnetic field up to 6 T applied in the sample's plane, at 2 K we took PNR data up to 11 T. The magnetization as determined by P...

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Veröffentlicht in:	Journal of physics. Conference series 2010-01, Vol.200 (3), p.032063
Hauptverfasser:	Saoudi, M, Temst, K, Haesendonck, C Van, Fitzsimmons, M R, Fritzsche, H
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Sprache:	eng
Schlagworte:	Freezing Magnetic fields Magnetic moments Magnetism Magnetization Physics Spin glasses
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creator	Saoudi, M Temst, K Haesendonck, C Van Fitzsimmons, M R Fritzsche, H
description	We performed polarized neutron reflectometry (PNR) experiments on a 29 nm thick Au93Fe7 film. The measurements were done in a temperature range from 300 K to 2 K in a magnetic field up to 6 T applied in the sample's plane, at 2 K we took PNR data up to 11 T. 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 \|μB per Fe atom. Below 50 K the onset of the spin-glass freezing was observed as a strong reduction of the magnetic moment compared to the isolated Fe atom.
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title	Magnetic field dependence of the magnetization of a 29 nm thick AuFe spin glass film
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