Dielectric properties of PLZT transparent ferroelectric ceramics at low and infra-low frequencies
- 1 July 1986
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 69 (1) , 111-115
- https://doi.org/10.1080/00150198608008132
Abstract
Anomalous behaviour of the complex dielectric constant ε* at Tt was revealed in thermally depoled samples of PLZT X/65/35 ferroelectric ceramics with X = 9.25 and 10 by means of infra-low-frequency dielectric spectroscopy in ultra-weak fields (E∼ = 0.1 V/cm). It was observed that the value of the additional maximum ε' in the Tt region increased for diminishing measuring field frequencies and tended to drift towards lower temperatures. The frequency-temperature dependence ε* of samples affected by biasing electric fields was investigated. The emergence and evolution of polar regions in the ferroelectric ceramics in a quasipolar phase was investigated by measuring the light depolarisation due to the longitudinal effect of light scattering.Keywords
This publication has 2 references indexed in Scilit:
- Study of phase transitions and properties of tetragonal (Pb,La)(Zr,Ti)O3 ceramics—IJournal of Physics and Chemistry of Solids, 1980
- Studies of phases, phase transitions and properties of some plzt ceramicsFerroelectrics, 1973