Structural phase transition in (BEDT-TTF)(3)CuBr4 at 60 K

被引：2

作者：

Watanabe, M

Nogami, Y

Oshima, K

Yamaura, JI

Enoki, T

Saito, G

机构：

[1] TOKYO INST TECHNOL,FAC SCI,DEPT CHEM,TOKYO 152,JAPAN

[2] KYOTO UNIV,FAC SCI,DEPT CHEM,KYOTO 60601,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1996年 / 100卷 / 11期

关键词：

organic crystals; crystal structure and symmetry; phase transitions;

D O I：

10.1016/S0038-1098(96)00512-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Low temperature X-ray diffraction study for organic semiconductor (BEDT-TTF)(3)CuBr4 revealed structural phase transition from P2(1)/c to Pc by losing inversion and screw symmetries at 60.2 K where the magnetic susceptibility shows a steep decrease. Abrupt changes in (0k0) X-ray reflection intensity and lattice parameters proved that this phase transition has first-order nature. Structure analysis at 65.9 K verified that the average coordination number of Br around Cu is four. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：755 / 758

页数：4