A Structural Study of the Compound AgSbTe2

Abstract
X‐ray, optical and electron microscope, and chemical etching techniques have been used to investigate a striated microstructure observed in zone refined single crystals of the AgSbTe2 structure. This microstructure, originally thought to be fine twin lamellas, has been identified as a Widmanstatten precipitate of Sb2Te3 upon the {111} planes of the matrix face‐centered cubic material. In addition, the evidence obtained from all the measurements made on this material indicates that the ternary compound of the AgSbTe2 type does not melt congruently.

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