Author:
Zekria David,Glazer A. M.
Abstract
A detailed phase diagram of Pb(Mg1/3Nb2/3)(1−x)TixO3, conventionally abbreviated to PMN-PT, has been constructed around the morphotropic phase boundary from measurements taken from one single crystal possessing a composition gradient. Optical birefringence imaging was employed as a function of temperature to plot retardation and orientation information as a function of temperature and position within the crystal. Electron-probe microanalysis measured the composition across the crystal and this enabled the phase boundaries to be plotted to high precision. Cubic (C), rhombohedral (R), tetragonal (T) and monoclinic (M) phases were observed, with the a C–R–T critical point at a compositionx= 0.275 (4) at 394.7 (5) K on heating and at the same composition at 386.5 (5) K on cooling, in close agreement with phase diagrams suggested by published dielectric and diffraction experiments.
Publisher
International Union of Crystallography (IUCr)
Subject
General Biochemistry, Genetics and Molecular Biology
Cited by
29 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献