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要旨:
Gd-155-Mossbauer spectroscopy was applied to study the magnetic
properties of GdPdSb with hexagonal LiGaGe structure and of GdNiSb in
the cubic MgAgAs-type structure as well as in the hexagonal AlB2-type
structure. In GdPdSb magnetic ordering is observed at 13.0 K with
indications of a tilted spin structure at lower temperatures. In the
cubic phase of GdNiSb magnetic ordering is observed at 9.5 K and in the
hexagonal phase around 3.5 K. These results are discussed in conjunction
with previous investigations of these samples. (C) 2008 Elsevier B.V.
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