DomAlN Structures and Poling Method of Barium Titanate Crystals

Abstract

Abstract: The crystal BaTiO₃ must be poled before its photorefractive applications. A technique forinspecting inclusions efficiently in the crystals has been established before poling crystals accordingto the 90° domAlN structures with the inclusions. With considering the character of the formationof 90° domAlN and 180° domAlN, the 90° domAlN can be removed by cooling crystal BaTiO₃slowlythrough the curie point (130.5℃), or by uniaxial pressing along a-axis. 180° domAlN can beremoved by applying electric field about 1～3×10⁵V／m on the face （001）.

Key words: barium titanate, phase transition, domAlN, plane phase boundary, poling

LUO Haosu,QI Zhenyi,ZHANG Bingyang,ZHONG Weizuo. DomAlN Structures and Poling Method of Barium Titanate Crystals[J]. Journal of Inorganic Materials.

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DomAlN Structures and Poling Method of Barium Titanate Crystals

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