The 66th JSAP Spring Meeting, 2019

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9 Applied Materials Science » 9.1 Dielectrics, ferroelectrics

[10p-M116-1~22] 9.1 Dielectrics, ferroelectrics

Sun. Mar 10, 2019 1:00 PM - 7:00 PM M116 (H116)

Hajime Nagata(Tokyo Univ. of Sci.), Satoshi Wada(Univ. of Yamanashi), Takaaki Morimoto(National Defence Academy)

5:30 PM - 5:45 PM

△ [10p-M116-17] Effect of substitution of other elements on ferroelectric characteristics, crystal and electronic structures of 0.4Bi0.5K0.5TiO3-0.6BiFeO3-based ferroelectric ceramics

〇Junichiro Maie1, Naoya Ishida1, Naoto Kitamura1, Yasushi Idemoto1 (1.Tokyo Univ. of Science)

Keywords:Crystal structure

Lead zirconate titanate is widely used as a ferroelectric material for electronic equipment, but 0.4Bi0.5K0.5TiO3-0.6BiFeO 3(BKTBF) based material has attracted attention as a non-lead low environmental load material. We have studied the relationship between ferroelectric properties and crystal structure of BKTBF based solid solution. In this study, attention is paid to 0.375BKT-0.6 BF-0.025K(Nb0.5Ta0.5)O3 in which potassium niobate tantalate is dissolved as a solid, and samples substituted with other metal elements (La, Ba, Zn, Ni). The ferroelectric properties and structural analysis using synchrotron X-ray diffraction were conducted to investigate the relationship between ferroelectric properties and crystal and electronic structures.