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Control of Volume Fraction of Non-180° Domains by Thermal Strain in Epitaxial Rhombohedral Pb(Zr, Ti)O3 Thick Films

Published online by Cambridge University Press:  10 April 2013

Yoshitaka Ehara ,
Satoru Utsugi ,
Takahiro Oikawa ,
Tomoaki Yamada  and
Hiroshi Funakubo
Yoshitaka Ehara
Affiliation:
Department of Innovative and Engineered Materials, Tokyo Institute of Technology, 4259, Nagatsuta, Yokohama, Kanagawa 226-8502, Japan
Satoru Utsugi
Affiliation:
Department of Innovative and Engineered Materials, Tokyo Institute of Technology, 4259, Nagatsuta, Yokohama, Kanagawa 226-8502, Japan
Takahiro Oikawa
Affiliation:
Department of Innovative and Engineered Materials, Tokyo Institute of Technology, 4259, Nagatsuta, Yokohama, Kanagawa 226-8502, Japan
Tomoaki Yamada
Affiliation:
Department of Materials, Physics and Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan PRESTO, Japan Science and Technology Agency, Chiyoda-ku, Tokyo 102-0075, Japan
Hiroshi Funakubo
Affiliation:
Department of Innovative and Engineered Materials, Tokyo Institute of Technology, 4259, Nagatsuta, Yokohama, Kanagawa 226-8502, Japan
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Abstract

Epitaxial rhombohedral Pb(Zr0.65Ti0.35)O3films with (100) and (110)/(10-1) and (111)/(11-1) orientations were grown on various kinds of singlecrystal substrates having different thermal expansion coefficient. Volume fractions of (110) and (111) orientations in respective (110)/(10-1) and (111)/(11-1)-oriented films were almost linearly increased with increasing thermal strain, εthermal, applied to the films that wasgenerated under the cooling process after the deposition from the growth temperature to the Curie temperature.Observed saturationpolarization (Psat)was changed linearly with the volume fractions of (110) and (111) orientations, in the same manner asthe volume fractions of (001) and (101) orientations in (001)/(100) and (101)/(110) oriented tetragonal Pb(Zr,Ti)O3 filmsreported previously. These results showed that the volume fraction of the non-180o domains Pb(Zr,Ti)O3films of both tetragonal and rhombohedral symmetriescan be manipulated by εthermal, which brings possibly to control the Psat value.

Keywords

epitaxyferroelectricpiezoelectric
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1507: Symposium AA – Oxide Nanoelectronics and Multifunctional Dielectrics , 2013 , mrsf12-1507-aa09-41
Copyright
Copyright © Materials Research Society 2013

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References

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