Electronic properties of two band system, β′-Pd(dmit)2 salts

被引：2
|
作者：
Takano, Y
Hiraki, K
Takahashi, T
Kato, R
机构：
[1] Gakushuin Univ, Dept Phys, Toshima Ku, Tokyo 1718588, Japan
[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
来源：
SYNTHETIC METALS | 2003年 / 133卷
关键词：
beta '-(Me4P)[Pd(dmit)(2)](2); beta '-(Et2Me2P)[Pd(dmit)(2)](2); C-13; NMR; band overlap;
D O I：
10.1016/S0379-6779(02)00288-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electronic states of the beta'-type Pd(dmit)(2) salts were examined by C-13 NMR under pressure. The ground states at ambient pressure are supposed to be Mott-Hubbard-type insulator. At 7 kbar, a peak anomaly of relaxation rate, 1/T-1, at 30 K was observed in the Et2Me2P salt. It is associated with a metal-nonmetal transition. At 9 kbar, a metal-metal transition was found in this salt. We consider that this may be the sign of the overlap between the LUMO and HOMO bands. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：423 / 424
页数：2
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