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- Publisher
- Wiley
- Copyright
- Copyright © 2009 Wiley Subscription Services, Inc., A Wiley Company
- ISSN
- 1862-6254
- eISSN
- 1862-6270
- DOI
- 10.1002/pssr.200903214
- Publisher site
- See Article on Publisher Site
Abstract
Since the rhombohedral unit cell in the NaCl lattice is caused by distortion along the 〈111〉 NaCl direction, the same phenomenon is expected during phase transition of Ge–Bi–Te (GBT). With this assumption, we performed transmission electron microscopy (TEM) studies on the phase transition in GBT alloys annealed at temperatures between the two crystallization temperatures. Atomic‐scale TEM images show the formation of a GBT intermediate structure during the phase transition. Using the obtained results, we developed a new phase transition model in which the Ge/Bi layers are ordered in the 〈111〉 direction; further, continuous shearing and dilation occur in the {111} plane in 〈110〉 direction. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Journal
Physica Status Solidi - Rapid Research Letters – Wiley
Published: Oct 1, 2009
Keywords: ; ;