Epitaxial-strain effect on charge/orbital order in Pr0.5 Ca0.5 MnO3 films

D. Okuyama; M. Nakamura; Y. Wakabayashi; H. Itoh; R. Kumai; H. Yamada; Y. Taguchi; T. Arima; M. Kawasaki; Y. Tokura

doi:10.1063/1.3246158

Epitaxial-strain effect on charge/orbital order in Pr0.5 Ca0.5 MnO3 films

D. Okuyama, M. Nakamura, Y. Wakabayashi, H. Itoh, R. Kumai, H. Yamada, Y. Taguchi, T. Arima, M. Kawasaki, Y. Tokura

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

41 Citations (Scopus)

Abstract

Effect of growth orientation on charge- and orbital-ordering (CO-OO) phenomena has been studied for Pr0.5 Ca0.5 MnO3 epitaxial thin films fabricated on (LaAlO3) 0.3 - (SrAl0.5 Ta0.5 O3) 0.7 (LSAT) substrates by means of resistivity, synchrotron x-ray diffraction, and polarized optical microscopy measurements. CO-OO transition is observed around 220 K for a film grown on an LSAT (011) substrate [(011) film], similarly to a bulk sample, while a film grown on a (001) plane of LSAT [(001) film] shows much higher transition temperature around 300 K. The domain size of OO is approximately three times as large in the (011) film as in the (001) film. These results demonstrate that various properties of CO-OO phenomena can be controlled with the growth orientation via the epitaxial strain from the substrate.

Original language	English
Article number	152502
Journal	Applied Physics Letters
Volume	95
Issue number	15
DOIs	https://doi.org/10.1063/1.3246158
Publication status	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Epitaxial-strain effect on charge/orbital order in Pr0.5 Ca0.5 MnO3 films",

abstract = "Effect of growth orientation on charge- and orbital-ordering (CO-OO) phenomena has been studied for Pr0.5 Ca0.5 MnO3 epitaxial thin films fabricated on (LaAlO3) 0.3 - (SrAl0.5 Ta0.5 O3) 0.7 (LSAT) substrates by means of resistivity, synchrotron x-ray diffraction, and polarized optical microscopy measurements. CO-OO transition is observed around 220 K for a film grown on an LSAT (011) substrate [(011) film], similarly to a bulk sample, while a film grown on a (001) plane of LSAT [(001) film] shows much higher transition temperature around 300 K. The domain size of OO is approximately three times as large in the (011) film as in the (001) film. These results demonstrate that various properties of CO-OO phenomena can be controlled with the growth orientation via the epitaxial strain from the substrate.",

author = "D. Okuyama and M. Nakamura and Y. Wakabayashi and H. Itoh and R. Kumai and H. Yamada and Y. Taguchi and T. Arima and M. Kawasaki and Y. Tokura",

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doi = "10.1063/1.3246158",

language = "English",

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T1 - Epitaxial-strain effect on charge/orbital order in Pr0.5 Ca0.5 MnO3 films

AU - Okuyama, D.

AU - Nakamura, M.

AU - Wakabayashi, Y.

AU - Itoh, H.

AU - Kumai, R.

AU - Yamada, H.

AU - Taguchi, Y.

AU - Arima, T.

AU - Kawasaki, M.

AU - Tokura, Y.

PY - 2009

Y1 - 2009

N2 - Effect of growth orientation on charge- and orbital-ordering (CO-OO) phenomena has been studied for Pr0.5 Ca0.5 MnO3 epitaxial thin films fabricated on (LaAlO3) 0.3 - (SrAl0.5 Ta0.5 O3) 0.7 (LSAT) substrates by means of resistivity, synchrotron x-ray diffraction, and polarized optical microscopy measurements. CO-OO transition is observed around 220 K for a film grown on an LSAT (011) substrate [(011) film], similarly to a bulk sample, while a film grown on a (001) plane of LSAT [(001) film] shows much higher transition temperature around 300 K. The domain size of OO is approximately three times as large in the (011) film as in the (001) film. These results demonstrate that various properties of CO-OO phenomena can be controlled with the growth orientation via the epitaxial strain from the substrate.

AB - Effect of growth orientation on charge- and orbital-ordering (CO-OO) phenomena has been studied for Pr0.5 Ca0.5 MnO3 epitaxial thin films fabricated on (LaAlO3) 0.3 - (SrAl0.5 Ta0.5 O3) 0.7 (LSAT) substrates by means of resistivity, synchrotron x-ray diffraction, and polarized optical microscopy measurements. CO-OO transition is observed around 220 K for a film grown on an LSAT (011) substrate [(011) film], similarly to a bulk sample, while a film grown on a (001) plane of LSAT [(001) film] shows much higher transition temperature around 300 K. The domain size of OO is approximately three times as large in the (011) film as in the (001) film. These results demonstrate that various properties of CO-OO phenomena can be controlled with the growth orientation via the epitaxial strain from the substrate.

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Epitaxial-strain effect on charge/orbital order in Pr0.5 Ca0.5 MnO3 films

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