Electrical Conductivity of Liquid In₂Te₃, Tl₂Te, Tl₂Se and Ag₂Te at High Temperatures and Pressures

Abstract

Electrical conductivity σ of liquid semiconductors In₂Te₃, Tl₂Te, Tl₂Se and Ag₂Te is measured up to 1500°C and up to 1000 bar. With increasing temperature, σ for liquid In₂Te₃ rapidly increases near the melting point and its temperature derivative becomes extremely small above 1100°C, while the temperature derivatives for liquid Tl₂Te, Tl₂Se and Ag₂Te are weakly temperature dependent. This difference is discussed in connection with the bonding character of constituent atoms in the respective systems.