Zero thermal expansion in YbGaGe due to an electronic valence transition

James R. Salvador, Fu Guo, Tim Hogan and Mercouri G. Kanatzidis ()
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James R. Salvador: Michigan State University
Fu Guo: Michigan State University
Tim Hogan: Michigan State University
Mercouri G. Kanatzidis: Michigan State University

Nature, 2003, vol. 425, issue 6959, 702-705

Abstract: Abstract Most materials expand upon heating. Although rare, some materials expand on cooling, and are said to exhibit negative thermal expansion (NTE); but the property is exhibited in only one crystallographic direction. Such materials include silicon and germanium1 at very low temperature (

Date: 2003
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DOI: 10.1038/nature02011

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