Domain state properties of the random-field model system Sr_1-x Ca_xTiO₃

Abstract

Smeared transitions into low-T domain states are evidenced by linear birefringence measured on Sr1-xCaxTiO3 at all concentrations, 0.002<x<0.058. Sharp ɛ vs T peaks, as observed for x<0.016, may be explained by domains having nearly sample size. The local disorder due to the Ca2+-induced random fields may partially be removed by a uniform external electric field. © 1988, Taylor & Francis Group, LLC. All rights reserved.