Invariant lattice strain and polarization in BaTiO3-CaTiO3 ferroelectric alloys

• Fu, Desheng

• Itoh, Mitsuru

• Koshihara, Shin-ya

抄録

We report the lattice strain and polarization of the BaTiO(3)-CaTiO(3) solid solution. We found that the lattice strain evaluated by the tetragonality of the tetragonal phase at room temperature is nearly independent of the composition within the limit of the solid solution. In association with this variation, the saturation polarization remains nearly unchanged. Such invariant lattice strain associated with the ionic displacement in ferroelectrics is considered to be responsible for the nearly compositional independence of the polarization and the observed ferroelectric Curie temperature. Its relatively stable polarization compared with that of pure BaTiO(3) is very interesting for technological applications, such as in ferroelectric memory.

収録刊行物

• Journal of physics. Condensed matter

  Journal of physics. Condensed matter 22 (5), 052204-, 2010-02-10

  IOP science

詳細情報

• CRID: 1050282813845287168
• NII論文ID: 120003309066
• NII書誌ID: AA10672168
• ISSN: 09538984
• ISSN: 1361648X
• Web Site: http://hdl.handle.net/10297/6143
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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