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

✍ Scribed by M. Watanabe; Y. Nogami; K. Oshima; J.-I. Yamaura; T. Enoki; G. Saito

• Book ID: 104167012
• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 455 KB
• Volume: 100
• Category: Article
• ISSN: 0038-1098
• DOI: 10.1016/s0038-1098(96)00512-1

✦ Synopsis

Low temperature X-ray diffraction study for organic semiconductor (BEDT-TTF)3CuBr4 revealed structural phase transition from p21/c to PC by losing inversion and screw symmetries at 60.2 K where the magnetic susceptibility shows a steep decrease. Abrupt changes in (Ok 0) 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.