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Small-strain (100)/(001)-oriented epitaxial PbTiO3 films with film thickness ranging from nano- to micrometer order grown on (100)CaF2 substrates by metal organic chemical vapor deposition

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Abstract

Changes in crystal structure and ferroelectric properties are investigated for (100)/(001)-oriented epitaxial PbTiO3 thin films grown on CaF2 substrates by metal organic chemical vapor deposition. In this work, PbTiO3 films, with thickness ranging from 60 to 2000 nm, presented volume fraction of (001)-oriented c-domain higher than 90%. Hence, the residual strain is smaller compared to films deposited on widely investigated SrTiO3 substrates. Additionally, more than 60 μC/cm2 remnant polarization is obtained for all film thickness ranges, and the estimated spontaneous polarization taking into account c-domain volume fraction is about 80 μC/cm2 regardless of film thickness, in good agreement with reported values for the single crystal.

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ACKNOWLEDGMENT

This work was partially supported by Grants-in-Aid from the Ministry of Education, Culture, Sports, Science and Technology, Japan, for the Elements Science and Technology Project (Grant Nos. 21360316 and 20047004) and the Japanese Society for the Promotion of Science (JSPS).

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Authors and Affiliations

  1. Department of Innovative and Engineered Materials, Tokyo Institute of Technology, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan

    Mohamed-Tahar Chentir, Satoru Utsugi, Takashi Fujisawa, Yoshitaka Ehara, Mutsuo Ishikawa & Hitoshi Morioka

  2. Application Laboratory, Bruker AXS, Kanagawa-ku, Yokohama, 221-0022, Japan

    Mohamed-Tahar Chentir, Satoru Utsugi, Takashi Fujisawa, Yoshitaka Ehara, Mutsuo Ishikawa & Hitoshi Morioka

  3. Department of Innovative and Engineered Materials, Tokyo Institute of Technology, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan

    Tomoaki Yamada

  4. Department of Materials, Physics and Energy Engineering, Nagoya University (PRESTO), Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan

    Tomoaki Yamada

  5. Japan Science and Technology Agency, Chiyoda-ku, Tokyo, 102-0075, Japan

    Tomoaki Yamada

  6. Department of Innovative and Engineered Materials, Tokyo Institute of Technology, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan

    Masaaki Matsushima & Hiroshi Funakubo

Authors
  1. Mohamed-Tahar Chentir
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  2. Satoru Utsugi
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  3. Takashi Fujisawa
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  4. Yoshitaka Ehara
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  5. Mutsuo Ishikawa
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  6. Hitoshi Morioka
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  7. Tomoaki Yamada
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  8. Masaaki Matsushima
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  9. Hiroshi Funakubo
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Corresponding author

Correspondence to Hiroshi Funakubo.

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Chentir, MT., Utsugi, S., Fujisawa, T. et al. Small-strain (100)/(001)-oriented epitaxial PbTiO3 films with film thickness ranging from nano- to micrometer order grown on (100)CaF2 substrates by metal organic chemical vapor deposition. Journal of Materials Research 28, 696–701 (2013). https://doi.org/10.1557/jmr.2012.441

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  • DOI: https://doi.org/10.1557/jmr.2012.441

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