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2005
Structure
D 2000
31- 005
Structural Chemistry and Physical Properties of the Rare Earth Silicide Dy3Si 4.
— The title compound is synthesized from the elements at 1270 K (1 month). As
revealed by single crystal XRD, Dy3Si4 crystallizes in the orthorhombic space group
Cmcm with Z = 1 and is isotypic with Ho3Si 4. The structure shows a partial disorder on
the Si substructure, even at low temperature. Its salient characteristics result from the
stacking of CrB-like and AlB2-like slabs alternating along the b-axis. Magnetic measurements indicate that the compound orders antiferromagnetically at 16 K. The temperature dependence of the electrical resistivity confirms its metallic behavior. —
(ROGER, J.; GUIZOUARN, T.; HIEBL, K.; HALET, J.-F.; GUERIN*, R.; J. Alloys
Compd. 394 (2005) 1-2, 28-34; Lab. Chim. Solide Inorg. Mol., CNRS, Univ. Rennes,
F-35042 Rennes, Fr.; Eng.) — W. Pewestorf
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