PEROVSKITE FORMATION OF PB(MG1/3NB2/3)O3 AND PB(FE1/2NB1/2)O3 FILM BY SOL-GEL METHOD

被引：35

作者：

OKUWADA, K ^{[1
]}

NAKAMURA, S ^{[1
]}

IMAI, M ^{[1
]}

KAKUNO, K ^{[1
]}

机构：

[1] YOKOHAMA NATL UNIV,FAC ENGN,DEPT ELECT & COMP ENGN,HODOGAYA KU,YOKOHAMA,KANAGAWA 240,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1990年 / 29卷 / 06期

关键词：

Alkoxide; Dielectric constant; Ferroelectric material; Grain growth; Nucleation; Orientation; Transmission electron microscopy; X-ray diffraction analysis;

D O I：

10.1143/JJAP.29.1153

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Dielectric thin films of Pb(Mg1/3Nb2/3)O3 and Pb(Fe1/2Nb1/2)O3 were prepared by sol-gel method. The Pb(Mg1/3Nb2/3)O3 perovskite film was formed by heat treatment at over 600°C and oriented on substrates whose interplanar spacings were close to that for the perovskite. On the other hand, Pb(Fe1/2Nb1/2)O3 perovskite appeared at below 500°C. It was not oriented in spite of having almost the same lattice parameters. Transmission electron microscopy revealed that Pb(Mg1/3Nb2/3)O3 perovskite nucleation occurs at specific places on the substrate, while Pb(Fe1/2Nb1/2)O3 occurs rand omly in the film. The grain of these films grew larger than 0.1 µm, and the dielectric constant was 1800 for the PMN film. © 1990 The Japan Society of Applied Physics.

引用

页码：1153 / 1156

页数：4

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