Pressure-induced metal-insulator transition in BiNiO3

被引：18
作者：
Ishiwata, S [1 ]
Azuma, M
Takano, M
机构：
[1] Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan
[2] Japan Sci & Technol Corp JST, PRESTO, Kawaguchi, Saitama 3320012, Japan
来源：
SOLID STATE IONICS | 2004年 / 172卷 / 1-4期
关键词：
metal-insulator transition; high pressure; BiNiO3; charge ordering; charge transfer;
D O I：
10.1016/j.ssi.2004.01.061
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We observed the pressure-induced metal-insulator (MI) transition in BiNiO3 and studied the structural features under high pressure by means of synchrotron X-ray diffraction (SXRD). The results show that the transition from the triclinic insulating phase to the higher symmetric metallic phase with a hysteresis occurs in the vicinity of 3 GPa, which is associated with a melting of the oxygen holes trapped and ordered in the Bi-O sublattice. (C) 2004 Elsevier B.V. All rights reserved.
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收藏
页码：569 / 571
页数：3
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