Preparation, crystal structure, and electrical properties of thallium monosulfide in the vicinity of high-temperature phase transitions


Aliev V. P. , Gasimov S. G. , Mammadov T. G. , Mammadov T. S. , Nadjafov A. I. , Seyidov M. Y.

PHYSICS OF THE SOLID STATE, cilt.48, ss.2322-2327, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 48 Konu: 12
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1134/s1063783406120134
  • Dergi Adı: PHYSICS OF THE SOLID STATE
  • Sayfa Sayıları: ss.2322-2327

Özet

Single crystals of thallium monosulfide TIS with excess sulfur (4 at. %) are grown. The existence of monoclinic (of the TIGaSe2 type), tetragonal ordered (of the TIS type), and subtetragonal phases of thallium monosulfide is revealed using x-ray powder diffraction. The temperature dependences of the electrical conductivity and permittivity of thallium monosulfide single crystals indicate that, in the temperature range 401-411 K, these crystals undergo a phase transition to a state with superionic conduction.