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A. Grytsiv, P. Rogl, St Berger, C. Paul, H. Michor, E. Bauer, G. Hilscher, W. Lottermoser, A. Saccone, R. Ferro, H. Noel:
"Novel thermoelectric skutterudites Sn_yNi₄Sb_12-xSn_x";
Physica B: Condensed Matter, 328 (2003), 71 - 73.

Novel thermoelectric skutterudites SnyNi4Sb12-xSnx

A. Grytsiva, P. Rogl [Corresponding Author Contact Information] , [E-mail The Corresponding Author] , a, St. Bergerb, Ch. Paulb, H. Michorb, E. Bauerb, G. Hilscherb, W. Lottermoserc, A. Sacconed, R. Ferrod and H. Noele

a Institut für Physikalische Chemie, Universitat Wien, Währingerstr. 42, A-1090, Wien, Austria
b Institut für Festkörperphysik, TU Wien, A-1040 Wien, Wiedner Hauptstr. 8-10, Austria
c Institut für Mineralogie, Universität Salzburg, Hellbrunnerstr. 34, A-50120, Salzburg, Austria
d Dipartimento di Chimica e Chimica Industriale, Universita di Genova, I-16146, Genova, Italy
e Laboratoire de Chimie du Solide et Inorganique Moléculaire, Université de Rennes I, F-35042, Rennes cedex, France

Available online 29 January 2003.


Abstract

SnyNi4Sb12-xSnx (2.4 [less-than-or-equals, slant] x [less-than-or-equals, slant] 5.6; 0 [less-than-or-equals, slant] y [less-than-or-equals, slant] 0.31 at 250°C) belongs to a new class of skutterudites in which the 8c site is fully occupied by Ni atoms. Sn atoms occupy two inequivalent sites (24g and 2a) and have a large thermal displacement parameter in 2a. Within the homogeneity range, electronic transport is primarily governed by the number of charge carriers, revealing a crossover from metallic- to a semiconducting behaviour with increase in x.

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