Crystallization-induced short-range order changes in amorphous GeTe

A. V. Kolobov, P. Fons, J. Tominaga, A. L. Ankudinov, S. N. Yannopoulos, K. S. Andrikopoulos

Research output: Contribution to journalArticlepeer-review

73 Citations (Scopus)


By means of x-ray absorption fine structure and Raman scattering spectroscopies we demonstrate that the structure of amorphous GeTe is likely to be a mixture of 4(Ge):2(Te) and 3(Ge):3(Te)-coordinated structural units. Upon crystallization, a rhombohedral (distorted rocksalt) structure is established with about 10% of vacancies occurring on Ge sites. The vacancies are believed to play an important role in determining the ratio of 3(Ge):3(Te) and 4(Ge):2(Te) structural units.

Original languageEnglish
Pages (from-to)S5103-S5108
JournalJournal of Physics Condensed Matter
Issue number44
Publication statusPublished - 2004 Nov 10
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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