Charge density study under high pressure

被引：13

作者：

Sakata, M

Itsubo, T

Nishibori, E

Moritomo, Y

Kojima, N

Ohishi, Y

Takata, M

机构：

[1] Nagoya Univ, Dept Appl Phys, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Japan Synchroton Res Inst, Mikazuki, Hyougo 6795198, Japan

[3] Univ Tokyo, Grad Sch Arts & Sci, Tokyo 1538902, Japan

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2004年 / 65卷 / 12期

关键词：

high pressure; x-ray diffraction; crystal structure; electronic structure;

D O I：

10.1016/j.jpcs.2004.08.028

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The experimental and analytical method of the high-pressure powder experiment at BL10XU, SPring-8, is described. There is no doubt that BL10XU must be one of the most appropriate beam lines for high pressure X-ray diffraction experiment taking advantage of third generation synchrotron source. As an example of the advanced charge density study under high pressure, the structural change of Cs2Au2Br6 by applying pressure is studied by Rietveld/MEM analysis. It reveals that the structural change of Cs2Au2Br6 by applying pressure occurs basically at electron level, such as valence state change and chemical bonding, which may be called the electronic phase transition. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1973 / 1976

页数：4

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