Quantum Fluctuation and Geometrical Frustration Effects on Electric Polarization

• Watanabe Tsutomu

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Ishihara Sumio

  Department of Physics, Tohoku University

抄録

We examine theoretically the possibility of ferroelectricity caused by electronic charge order without inversion symmetry motivated by layered iron oxides. Quantum electronic models in a paired-triangular lattice are analyzed by utilizing the variational Monte Carlo simulation. Our calculations demonstrate that the combined effects of electron transfer between the layers, corresponding to quantum fluctuation between the potential minima, and geometrical frustration promote the appearance of electric polarization. Our results contrast with the conventional manner of quantum fluctuation in ferroelectricity.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 78 (11), 113702-113702, 2009

  一般社団法人 日本物理学会

キーワード

• ferroelectricity
• frustration

詳細情報

• CRID: 1390001204197029760
• NII論文ID: 130005437215
• NII論文ID: 210000108052
• NII論文ID: 40016829612
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.78.113702
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 10438939
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10438939
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.78.113702
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可