Epitaxy-induced phase of near-stoichiometry PbTiO3 films prepared by metalorganic chemical vapor deposition

27 July 1992

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 61 (4) , 408-410
https://doi.org/10.1063/1.107897

Abstract

Ferroelectric PbTiO₃ thin films have been prepared by a low‐pressure MOCVD process. Epitaxial films with a crystal structure of a bulk equilibrium tetragonal phase were readily obtained within a range of growth conditions. However, by providing excess Pb in the growth process, we have observed an epitaxy‐induced phase for near‐stoichiometry PbTiO₃ which possesses a perovskite‐like, but possible, orthorhombic structure.

Keywords

LEAD TITANATES
PHASE STUDIES
LEAD COMPOUNDS
TITANATES
FILMS
CHEMICAL VAPOR DEPOSITION
CRYSTAL STRUCTURE
EPITAXY
ORTHORHOMBIC LATTICES
PEROVSKITES
X−RAY DIFFRACTION

This publication has 1 reference indexed in Scilit:

X-Ray Diffraction Study of Heteroepitaxy of MOCVD Grown TiO2 and VO2 Films on Sapphire Single Crystals
MRS Proceedings, 1991