Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1500316 | Scripta Materialia | 2010 | 4 Pages |
Abstract
We analyze a line defect at the interface between tetradymite-structured Sb2Te3 and rocksalt-structured AgSbTe2 using high-resolution electron microscopy. By determining the step-height and Burgers vector of this defect, we show how motion of the defect, through a diffusive glide mechanism, can transform material from the rocksalt structure to the tetradymite structure. We discuss the atomic flux requirements for this defect motion. This analysis helps to explain the growth mechanism of tetradymite precipitates within rocksalt-structured chalcogenides.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
D.L. Medlin, J.D. Sugar,