Unusual Dielectric Behavior of La-Ti-Al-O Ceramics with Perovskite Structure

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概要

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• Perovskite compounds, La_<(2+x)/3>(Ti_<1-x>Al_x)O_3 with x ranging from 0.05 to 0.15, were prepared and the dielectric properties were investigated. Partial substitution of Al^<3+> for Ti^<4+> in La_<2/3>TiO_3 stabilizes the deficient perovskite structure with ordered A-site cation vacancy. Dielectric loss peaks show the existence of a relaxation process due to ionic motion related to the cation vacancy. High dielectric constants were obtained at lower frequency than the dielectric loss peak.

• 社団法人応用物理学会の論文
• 1994-07-01

著者

• Yoshioka Hideki

  Hyogo Prefectural Institute Of Industrial Research

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