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Ferroelectric Properties of a-Axis Textured BaTiO3 Thin Films

Published online by Cambridge University Press:  21 February 2011

H. A. Lu ,
L. A. Wills ,
B. W. Wessels ,
X. Zhan ,
J. A. Helfrich  and
J. B. Ketuerson
H. A. Lu
Affiliation:
Dept. of Materials Science and Engineering, Northwestern University, Evanston, IL 60208
L. A. Wills
Affiliation:
Dept. of Materials Science and Engineering, Northwestern University, Evanston, IL 60208
B. W. Wessels
Affiliation:
Dept. of Materials Science and Engineering, Northwestern University, Evanston, IL 60208
X. Zhan
Affiliation:
Basic Industrial Research Laboratory, Northwestern University, Evanston, IL 60201
J. A. Helfrich
Affiliation:
Dept. of Physics, Northwestern University, Evanston, IL 60208
J. B. Ketuerson
Affiliation:
Dept. of Physics, Northwestern University, Evanston, IL 60208
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Abstract

Ferroelectric and dielectric properties were measured for BaTiO3 thin films prepared by metalorganic chemical vapor deposition which were highly a-axis textured. No ferroelectric hysteresis was observed from the as-deposited BaTiO3 films on Pt coated MgO. Upon applying an electric field exceeding a threshold electric field, Et, ∼ 50 - 100 kV/cm, a ferroelectric hysteresis was observed. A spontaneous polarization Ps ≥ 15 μC/cm2 was measured for the textured films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 310: Symposium N – Ferroelectric Thin Films III , 1993 , 319
Copyright
Copyright © Materials Research Society 1993

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