Journal
SCRIPTA MATERIALIA
Volume 62, Issue 6, Pages 379-382Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2009.11.028
Keywords
Thermoelectric materials; Phase transformations; Precipitation; Interfaces; High-resolution electron microscopy (HREM)
Categories
Funding
- US-DOE-OBES-DMS
- Sandia LDRD Office
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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 it diffusive glide mechanism, call 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 (C) 2009 Acta Materialia Inc Published by Elsevier Ltd All rights reserved
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