Ferroelectricity Induced by Proper-Screw Type Magnetic Order

• Arima Taka-hisa

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

抄録

A novel type of magnetic origin of ferroelectric polarization is proposed. In crystals with triclinic, monoclinic, or trigonal (rhombohedral) symmetries, the proper screw type of magnetic ordering can induce ferroelectricity through the variation in the metal–ligand hybridization with spin–orbit coupling. The ferroelectric polarization in delafossite compounds Cu(Fe,Al)O₂ is successfully explained by the mechanism. The relation between the polarization direction and the magnetic modulation vector is also predicted.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 76 (7), 073702-073702, 2007

  一般社団法人 日本物理学会

キーワード

• multiferroics
• CuFeO<SUB>2</SUB>
• spiral magnet
• proper screw
• cycloid
• delafossite
• ferroelectricity

詳細情報

• CRID: 1390001204194361728
• NII論文ID: 130005296894
• NII論文ID: 110006350743
• NII論文ID: 210000106765
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.76.073702
• BIBCODE: 2007JPSJ...76g3702A
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 8814555
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8814555
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.76.073702
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
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