Journal
APPLIED PHYSICS LETTERS
Volume 93, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2965463
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This work reports on the magnetostructural properties of Co2-xFe1+xSi with 0 < x < 1. The Heusler compound Co2FeSi is a half-metallic ferromagnet with high Curie temperature and was suggested as candidate for a high tunneling magnetoresistance. Changing the Fe content allows to tune its magnetic properties. It is demonstrated that the solid solution series Co2-xFe1+xSi is perfectly ordered. Fe-57 Mossbauer spectroscopy was used to determine the local hyperfine magnetic fields of the Fe atoms. Two different hyperfine magnetic fields are detected in samples with x > 0. Changes in the relative intensities indicate the well ordered substitution of Co by Fe atoms. (C) 2008 American Institute of Physics.
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