Origin of Ferroelectricity in Perovskite-Type Ferroelectric Oxides

DOI Web Site 26 References
  • TANIGUCHI Hiroki
    Materials and Structures Lab., Tokyo Institute of Technology
  • MORIWAKE Hiroki
    Materials and Structures Lab., Tokyo Institute of Technology
  • SHAN Yue Jin
    Nanostructures Research Laboratory, Japan Fine Ceramics Center
  • ITOH Mitsuru
    Dept. of Material and Environmental Chemistry, Research Division of Functional Materials Design, Utsunomiya University

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Other Title
  • ペロブスカイト型酸化物における強誘電性の起源
  • ペロブスカイトガタ サンカブツ ニ オケル キョウ ユウデンセイ ノ キゲン

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Abstract

An Origin of ferroelectricity in Perovskite-type oxides is discussed from a viewpoint of relation between lattice dynamics and chemical bonding state, through comprehensive study of a Ca-substitution effect on the ferroelectricity in CdTiO3. The result indicates covalency of constituent elements plays an important role on the ferroelectricity in the perovskite-type oxides.

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