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The Phase Diagram of Epitaxial BaTiO3 Films under Bi-Axial Stress

Published online by Cambridge University Press:  10 February 2011

S. B. Desu ,
Z. J. Chen ,
V. P. Dudkevich ,
P. V. Dudkevich ,
I. N. Zakharchenko  and
G. L. Kushlyan
S. B. Desu
Affiliation:
Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, desu@vtvml.cc.vt.edu
Z. J. Chen
Affiliation:
Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, desu@vtvml.cc.vt.edu
V. P. Dudkevich
Affiliation:
Institute of Physics, Rostov State University, Rostov-on-Don, 344090, Stachki 194, Russia
P. V. Dudkevich
Affiliation:
Institute of Physics, Rostov State University, Rostov-on-Don, 344090, Stachki 194, Russia
I. N. Zakharchenko
Affiliation:
Institute of Physics, Rostov State University, Rostov-on-Don, 344090, Stachki 194, Russia
G. L. Kushlyan
Affiliation:
Institute of Physics, Rostov State University, Rostov-on-Don, 344090, Stachki 194, Russia
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Abstract

The phase diagram of eptaxial BaTiO3 films in the coordinates of T and αs ( substrate thermal expansion coefficient) is constructed on the basis of the thermodynamic analysis which has been carried out earlier [1]. It is found that two new phase are formed under bi-axial stress. The temperature dependencies of polarization and unit cell parameters for the films on the KTaO3 and SrTiO3 substrates are also calculated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 433: Symposium T – Ferroelectric Thin Films V , 1996 , 345
Copyright
Copyright © Materials Research Society 1996

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References

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