Ordering and self-diffusion in FePt alloy film
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Date
2008-05
Publication Type
Journal Article
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yes
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Abstract
Neutrons have different scattering cross-sections for the isotopes of an element. Also, they interact with the un-paired electrons in a magnetic sample due to their magnetic moment. Neutron reflectivity or reflectometry is a technique which measures the depth profile of a sample. Using polarized neutrons, both self-diffusion and magnetism can be probed in a unique way. In the present work, polarized neutron reflectometry measurements were performed in [FePt/57FePt] multilayers across the structural ordering temperature of this sample. It was found that the structural ordering in this system is concurrent with a sudden increase in Fe diffusivity and a sudden drop in the value of the magnetic moment.
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published
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Journal / series
Volume
10
Pages / Article No.
53031
Publisher
IOP Publishing
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02509 - Laboratorium für Neutronenstreuung / Laboratory for Neutron Scattering