Reducing azimuthal domains in epitaxial ferroelectric lanthanum-substituted bismuth titanate films using miscut yttria-stabilized zirconia substrates

Sung Kyun Lee; Dietrich Hesse; Ulrich Gösele; Ho Nyung Lee

doi:10.1063/1.1897044

Reducing azimuthal domains in epitaxial ferroelectric lanthanum-substituted bismuth titanate films using miscut yttria-stabilized zirconia substrates

Sung Kyun Lee, Dietrich Hesse, Ulrich Gösele, Ho Nyung Lee

Materials Science and Technology Div

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

We report the effect of a definite miscut of yttria-stabilized zirconia (YSZ) (100) single-crystal substrates onto the number of azimuthal domain variants within epitaxial La-substituted Bi4 Ti3 O12 (BLT) ferroelectric thin films as well as within SrRu O3 electrode layers, both grown on these substrates. YSZ substrates with a miscut angle of 5° were studied, with two different directions of the miscut, viz., YSZ[001] and YSZ[011]. A reduction of the number of azimuthal domain variants by 50% was attained on substrates with a [011]-directed miscut. Due most probably to the reduced number of azimuthal domain boundaries, larger remanent polarization values were attained in BLT films when grown on miscut substrates.

Original language	English
Article number	142903
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	86
Issue number	14
DOIs	https://doi.org/10.1063/1.1897044
State	Published - Apr 4 2005

Funding

This research was supported by Deutsche Forschungsgemeinschaft (DFG) via the Group of Researchers FOR 404 at Martin Luther University Halle-Wittenberg. One of the authors (H.N.L.) was supported by the U.S. Department of Energy under contract with the Oak Ridge National Laboratory, managed by UT-Battelle, LLC, as part of a BES NSET initiative on Nanoscale Cooperative Phenomena and of the LDRD program.

Funders	Funder number
BES NSET
U.S. Department of Energy
Oak Ridge National Laboratory
Laboratory Directed Research and Development
Deutsche Forschungsgemeinschaft

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10.1063/1.1897044

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Reducing azimuthal domains in epitaxial ferroelectric lanthanum-substituted bismuth titanate films using miscut yttria-stabilized zirconia substrates

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