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Fabrication and characterization of in-situ grown epitaxial Ba1-xSrxTiO3 composition spreads

Published online by Cambridge University Press:  17 March 2011

K. S. Chang ,
M. Aronova ,
O. Famodu ,
J. Hattrick-Simpers ,
S. E. Lofland ,
I. Takeuchi ,
C. J. Lu ,
L. A. Bendersky  and
H. Chang
K. S. Chang
Affiliation:
Department of Materials Science and Engineering, and Center for Superconductivity Research, Department of Physics University of Maryland, College Park, MD 20742
M. Aronova
Affiliation:
Department of Materials Science and Engineering, and Center for Superconductivity Research, Department of Physics University of Maryland, College Park, MD 20742
O. Famodu
Affiliation:
Department of Materials Science and Engineering, and Center for Superconductivity Research, Department of Physics University of Maryland, College Park, MD 20742
J. Hattrick-Simpers
Affiliation:
Department of Materials Science and Engineering, and Center for Superconductivity Research, Department of Physics University of Maryland, College Park, MD 20742
S. E. Lofland
Affiliation:
Department of Materials Science and Engineering, and Center for Superconductivity Research, Department of Physics University of Maryland, College Park, MD 20742
I. Takeuchi
Affiliation:
Department of Materials Science and Engineering, and Center for Superconductivity Research, Department of Physics University of Maryland, College Park, MD 20742
C. J. Lu
Affiliation:
National Institute of Standards and Technology Gaithersburg, MD 20899
L. A. Bendersky
Affiliation:
National Institute of Standards and Technology Gaithersburg, MD 20899
H. Chang
Affiliation:
Lawrence Berkeley National Laboratory Berkeley, CA 94720
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Abstract

We have used our combinatorial pulsed laser deposition system to in-situ fabricate epitaxial Ba1-xSrxTiO3 thin film composition spreads on (100) LaAlO3 substrates. Multimode quantitative microwave microscopy was used to perform dielectric characterization of the spreads at multiple microwave frequencies simultaneously. Systematic variation in dielectric properties as a function of composition is studied. The multi-mode measurements allow frequency dispersion studies. We observe strong composition-dependent dielectric dispersion in Ba1-xSrxTiO3.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 700: Symposium S – Combinatorial and Artificial Intelligence Methods in Materials Science , 2001 , S3.6
Copyright
Copyright © Materials Research Society 2002

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References

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