Deuterated kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br: A system on the border of the superconductor-magnetic-insulator transition

被引：126

作者：

Kawamoto, A ^{[1
]}

Miyagawa, K ^{[1
]}

Kanoda, K ^{[1
]}

机构：

[1] INST MOL SCI,OKAZAKI,AICHI 444,JAPAN

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.55.14140

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic state of the deuterated salt of the organic system kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br, has been investigated by dc/ac susceptibility and H-1/C-13 NMR measurements. We found that the system is situated in the critical region of the transition between a superconducting phase with a T-C of similar to 11.5 K and an antiferromagnetic phase with a T-N of 14-15 K. It was also found that the rapid cooling through 80 K drives the superconducting phase into the magnetic phase, that is discussed in the light of the role of disorder near the Mott transition.

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页码：14140 / 14143

页数：4

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