期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 14, 期 47, 页码 16197-16202出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp41826f
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资金
- ThyssenKrupp AG
- Bayer MaterialScience AG
- Salzgitter Mannesmann Forschung GmbH
- Robert Bosch GmbH
- Benteler Stahl/Rohr GmbH
- Bayer Technology Services GmbH
- state of North-Rhine Westphalia
- European Commission
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.
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