High-quality single crystal growth of Bi-based perovskite ferroelectrics based on defect chemistry

• NOGUCHI Yuji

  Research Center for Advanced Science and Technology, The University of Tokyo

• TANABE Ichiro

  Research Center for Advanced Science and Technology, The University of Tokyo

• SUZUKI Muneyasu

  Research Center for Advanced Science and Technology, The University of Tokyo

• MIYAYAMA Masaru

  Research Center for Advanced Science and Technology, The University of Tokyo

Abstract

We present the O₂-blowing method for the growth of high-quality single crystals of Bi-based perovskite ferroelectrics, in which O₂ gas is directly introduced inside crucibles during crystal growth. The O₂-blowing method is demonstrated to be effective for enhancing polarization and piezoelectric properties as well as reducing leakage current for (Bi,Na)TiO₃-BaTiO₃ crystals. The superior properties are suggested to originate from the reduced reorientation of non-180° domains. Ab initio calculations suggest that the interaction between spontaneous polarization and defect dipole composed of Bi vacancy and O vacancy is the origin of the reorientation of non-180° domains.

Journal

• Journal of the Ceramic Society of Japan

  Journal of the Ceramic Society of Japan 116 (1357), 994-1001, 2008

  The Ceramic Society of Japan

Keywords

• Ferroelectric
• Perovskite
• Defect
• (Bi,Na)TiO₃
• BaTiO₃
• BNT-BT
• Single crystal

Details

• CRID: 1390282680260164608
• NII Article ID: 110006914866
• NII Book ID: AA12229489
• DOI: 10.2109/jcersj2.116.994
• ISSN: 13486535
• ISSN: 18820743
• NDL BIB ID: 9627964
• Web Site: http://id.ndl.go.jp/bib/9627964
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9627964
• Web Site: http://www.jstage.jst.go.jp/article/jcersj2/116/1357/116_1357_994/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed