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Abstract:
The family of half-Heusler compounds offers a variety of half-metallic
ferromagnetic materials. We have applied the Mossbauer spectroscopy to
study the atomic order, local surroundings and hyperfine fields to
several half-Heusler compounds. Sb-121 Mossbauer study of the compound
CoMnSb revealed the presence of two nonequivalent antimony positions in
the elementary cell and enabled to identify the structure. Sn-119m,
Gd-155 and Au-197 Mossbauer spectroscopic studies were used to
characterize the properties of ferromagnetic granular material based on
the half-Heusler ferromagnet MnAuSn in the antiferromagnetic GdAuSn
matrix.
