Relaxor Properties of TlInS₂⟨Mn⟩ Composites with Nanodomain State

Abstract

Recent theoretical investigations predict that the thermal filling of trap centers could lead to an intricate sequence of phase transitions with unstable boundary state between the phases. This fact has motivated the experimental study of ferroelectric phase transitions in TlInS₂⟨Mn⟩ composites where the cationic impurities can form the capture levels (traps) at the bottom of the conduction band. In this paper the results of experimental investigation of dielectric, polarization and pyroelectric properties of TlInS₂⟨Mn⟩ composites are presented. It was shown that TlInS₂⟨Mn⟩ composites display all peculiarities that are typical for relaxor ferroelectrics.

Keywords:

• Relaxor ferroelectrics
• phase transition
• dielectric constant