Origin of structural instability in TlInS2(1-x)Se2x solid solutions

Seyidov M. Y. , Suleymanov R. A. , Salehli F.

PHYSICA SCRIPTA, cilt.84, sa.1, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 84 Konu: 1
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1088/0031-8949/84/01/015601
  • Dergi Adı: PHYSICA SCRIPTA

Özet

The influence of the isovalent substitution of selenium for sulfur in the anion sublattice of mixed TlInS2(1-x)Se2x crystals has been studied by means of dielectric measurements. It is shown that transformations in the In-4(SxSe1-x)(10) structural unit must be taken into account considering the nature of possible phase transitions in TlInS2(1-x)Se2 solid solutions. Possible mechanisms of the phase transition including instabilities in the electronic subsystem of pure TlInSe2 crystals are discussed.