Publications
High throughput density functional investigations of the stability, electronic structure and thermoelectric properties of binary silicides
I. Opahle, G. Madsen, R. Drautz.
Physical Chemistry Chemical Physics, 14, 16197–16202, (2012)
Abstract
The structural stabilities of binary Mg–X (X = Si, Ge, Sn) and 4d transition metal silicides
Mo–Si and Ru–Si are investigated. The convex hulls of stable alloys are in overall good
agreement with the known experimental phase diagrams. It is shown how the Si-rich Ru–Si
structures have band gaps at the Fermi-level and how the Ru2Si3 structure is stabilized compared
to the corresponding Fe2Si3 structure. We discuss the band structure of Ru2Si3 and show how the
anisotropic band masses lead to favorable calculated thermoelectric properties.
DOI: 10.1039/c2cp41826f
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