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Preparation of heteroepitaxial SrRuO3 thin film on Si substrate and microstructure of BaTiO3-NiFe2O4 epitaxial composite thin film deposited on the SrRuO3 bottom electrode using PLD

Published online by Cambridge University Press:  24 March 2011

Naoki Wakiya ,
Naonori Sakamoto ,
Shigeki Sawamura ,
Desheng Fu ,
Kazuo Shinozaki  and
Hisao Suzuki
Naoki Wakiya
Affiliation:
Department of Materials Science and Chemical Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
Naonori Sakamoto
Affiliation:
Department of Materials Science and Chemical Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
Shigeki Sawamura
Affiliation:
Department of Materials Science and Chemical Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
Desheng Fu
Affiliation:
Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
Kazuo Shinozaki
Affiliation:
Department of Metallurgy and Ceramics Science, 2-12-1, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
Hisao Suzuki
Affiliation:
Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
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Abstract

A “0-0 type” multiferroic BaTiO3-NiFe2O4 (BT-NF) composite thin film was prepared on SrRuO3/(La,Sr)MnO3/CeO2/YSZ/Si(001) substrate using pulsed laser deposition (PLD). Epitaxial growth of the film was confirmed using x-ray pole figure measurements. Cross-sectional TEM observations revealed that the crystal structure and morphology of the BT-NF composite thin film depends on the oxygen pressure during deposition. The film deposited at 1.0×10-2 Torr has smaller grains than that deposited at 1.0×10-1 Torr. The magnetic and ferroelectric properties of BT-NF composite thin film were correlated with the microstructure that was controlled by oxygen pressure during deposition. The film deposited at 1.0×10-2 Torr had paramagnetic properties with less polarization than the film deposited at 1.0×10-1 Torr.

Keywords

magneticferroelectricfilm
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1308: Symposium DD – Artificially Induced Crystalline Alignment in Thin Films and Nanostructures , 2011 , mrsf10-1308-dd07-12
Copyright
Copyright © Materials Research Society 2011

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References

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