This article is cited in 6 papers

Phase transitions

Dielectric properties and phase transitions in crystals of TlInS$_x$Se$_{2-x}$ solid solutions

A. U. Sheleg^a, V. G. Hurtavy^a, V. V. Shautsova^a, V. A. Aliev<sup>b

a</sup> Scientific-Practical Materials Research Centre of NAS of Belarus
^b Institute of Physics Azerbaijan Academy of Sciences

Abstract: This paper reports on a study of the dielectric permittivity and electrical conductivity of single-crystal TlInS$_x$Se$_{2-x}$ solid solutions as functions of temperature and composition. It has been found that the dielectric permittivity $\varepsilon$ and electrical conductivity $\sigma$ decrease with increasing $x$ and increase with growing temperature. The temperature dependences $\varepsilon=f(T)$ and $\sigma=f(T)$ for TlInS$_x$Se$_{2-x}$ crystals have been demonstrated to reveal anomalies in the form of maxima, which suggests that these crystals undergo phase transitions. The temperatures of the phase transitions increase with increasing $x$.

Received: 21.07.2011

 English version: Physics of the Solid State, 2012, 54:3, 622–625

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