Crystal structure and charge order below the metal-insulator transition in the vanadium bronze β-SrV6O15

被引：21

作者：

Sellier, C ^{[1
]}

Boucher, F ^{[1
]}

Janod, E ^{[1
]}

机构：

[1] Univ Nantes, CNRS, UMR 6502, Inst Mat Jean Rouxel, F-44322 Nantes 3, France

来源：

SOLID STATE SCIENCES | 2003年 / 5卷 / 04期

关键词：

inorganic compounds; X-ray diffraction; crystal structure; phase transition; charge ordering;

D O I：

10.1016/S1293-2558(03)00045-1

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Single crystal X-ray diffraction measurements were performed on one-dimensional mixed valence vanadium bronze beta-SrV6O15 in which a metal-insulator transition exists at 170 K. Above 170 K the P2(1)/a structure with zigzag order of Sr in the tunnels of vanadium is confirmed: In the structure below 170 K, the P2(1)/a space group is retained with a b-axis threefold, increase and a charge order appears. A bond valence sum analysis shows that the charge order may consist in clusters of V4+ regularly spaced along. 1D direction. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.

引用

页码：591 / 599

页数：9

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