| Abstract: | TlBiTe2 and TlBiSe2 ‐ that are ternary analogs of the IV‐VI semiconductors ‐, although they crystallize in the same space group R m (D53d), exhibit different behaviour during heating. The observed phase transformation depends on Se content (x) in the system TlBi(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. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
