Phase transformation in the system TlBi(Te<sub>1-x</sub>Se<sub>x</sub>)<sub>2</sub>

Chrissaris K., Vinga E., ÖZER M., Paraskevopoullos K., Polychroniadis E.

CRYSTAL RESEARCH AND TECHNOLOGY, vol.39, no.4, pp.322-327, 2004 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 39 Issue: 4
  • Publication Date: 2004
  • Doi Number: 10.1002/crat.200310189
  • Journal Name: CRYSTAL RESEARCH AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.322-327
  • Istanbul Kültür University Affiliated: No

Abstract

TlBiTe2 and TlBiSe2 -that are ternary analogs of the IV-VI semiconductors-, although they crystallize in the same space group R (3) over barm (D-3d(5)), exhibit different behaviour during heating. The observed phase transformation depends on Se content (x) in the system TIBi(Te1-xSex)(2) and the transformation disappears by increasing Se content after a certain value (x=0.25). This dependence is examined through the analysis of the DSC non-isothermal measurements and an attempt for the explanation of the observed behaviour is undertaken through the consideration of off - center atoms. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim