Rhombohedral-tetragonal phase boundary with high curie temperature in (1-x)BiCoO3-xBiFeO3 solid solution

被引：86

作者：

Azuma, Masaki ^{[1
]}

Niitaka, Seiji

Hayashi, Naoaki ^{[2
]}

Oka, Kengo ^{[1
]}

Takano, Mikio

Funakubo, Hiroshi ^{[3
]}

Shimakawa, Yuichi ^{[1
]}

机构：

[1] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

[2] Kyoto Univ, Grad Sch Human & Environm Sci, Kyoto 6068501, Japan

[3] Tokyo Inst Technol, Dept Innovat & Engineered Mat, Midori Ku, Yokohama, Kanagawa 2268502, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2008年 / 47卷 / 09期

关键词：

MPB; high-pressure synthesis; BiCoO3; BiFeO3;

D O I：

10.1143/JJAP.47.7579

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The crystal structure change of the solid solution BiCo1-xFexO3 was investigated in order to determine the phase boundary between tetragonal BiCoO3 and rhombohedral BiFeO3. It was found that BiCo1-xFexO3 with x = 0 to 0.6 had tetragonal BiCoO3 structures, while those with x = 0.8 to 1 had rhombohedral BiFeO3 structures at room temperature. The monoclinic root 2a x root 2a x a phase was found for the x = 0.7 sample. The tetragonal-to-cubic phase transition was first observed at around 700-850 degrees C in Bi-based perovskite for the x = 0.8 sample.

引用

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页码：7579 / 7581

页数：3

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