Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10620509 | Acta Materialia | 2012 | 5 Pages |
Abstract
We have used accurate convergent beam electron diffraction to determine the structure factors of the reflections most sensitive to the valence-electron distribution in Mg2Si. The experimental values agree well with calculations of the structure factors based on density functional theory. Based on the experimentally scrutinized electron structure calculations we show that this promising thermoelectric material is highly ionic, arriving at the charge Mg21.45+Si2.9-.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
K. Valset, E. Flage-Larsen, P. Stadelmann, J. Taftø,