Title :
Relaxor properties of TlInS2 composites with nanodomain state
Author :
Sardarli, A. ; Filanovsky, I.M. ; Sardarli, R.M. ; Samedov, O.A. ; Sadigov, I. Sh ; Aslanov, A.I.
Author_Institution :
Dept. of ECE, Alberta Univ., Edmonton, Alta., Canada
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 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 composites are presented. It was shown that TlInS2 composites display all peculiarities that are typical for relaxor ferroelectrics.
Keywords :
conduction bands; dielectric materials; dielectric polarisation; ferroelectric transitions; impurities; indium compounds; iron; permittivity; pyroelectricity; relaxor ferroelectrics; thallium compounds; TlInS2 composites; TlInS2-Fe; cationic impurities; conduction band; dielectric polarization; ferroelectric phase transitions; nanodomain state; pyroelectric properties; relaxor ferroelectrics; relaxor properties; thermal filling; trap centers; traps; unstable boundary state; Crystals; Dielectric constant; Dielectric loss measurement; Ferroelectric materials; Frequency measurement; Impurities; Iron; Pyroelectricity; Temperature dependence; Temperature sensors;
Conference_Titel :
MEMS, NANO and Smart Systems, 2003. Proceedings. International Conference on
Print_ISBN :
0-7695-1947-4
DOI :
10.1109/ICMENS.2003.1221985
