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Epitaxial growth of ferroelectric bismuth titanate thin films by pulsed laser deposition

Publication Type

Journal Article

Authors

Ramesh, Ramamoorthy, K. Luther, B. Wilkens, D.L. Hart, E. Wang, J.M. Tarascon, A. Inam, X.D. Wu, T. Venkatesan

DOI

10.1063/1.104128

Abstract

Epitaxial thin films of ferroelectric bismuth titanate Bi 4Ti3O12 have been grown by pulsed laser deposition on single-crystal [100] SrTiO3 substrates. Bismuth titanate has a high Curie temperature (675°C) and saturation polarization values of 4 and 50 μC/cm2 along the c and b axis, respectively. Its a,b lattice parameters allow thin-film growth on substrates such as SrTiO3, LaAlO3, MgO, etc. These single crystalline films exhibit good quality as evidenced by x-ray diffraction, Rutherford backscattering, and transmission electron microscopy. Applications for these films include memory devices and optical displays.

Journal

Applied Physics Letters

Volume

Year of Publication

1990

ISSN

00036951

Notes

cited By 115

Research Areas

Ramesh Lab