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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
Affiliation:
Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, [email protected]
Z. J. Chen
Affiliation:
Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, [email protected]
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
Copyright
Copyright © Materials Research Society 1996

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References

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