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Figure 2
Crystal structures of (a) metastable and (b) stable Ge2Bi2Te5 are shown schematically in perspective. The metastable cubic structure is depicted in a hexagonal unit cell. Black circles show the atomic positions for Te; gray circles show those for Ge or Bi.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
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