Wigner crystal type of charge ordering in an organic conductor with a quarter-filled band:: (DI-DCNQI)2Ag

被引：170

作者：

Hiraki, K

Kanoda, K

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[2] Inst Mol Sci, Okazaki, Aichi 4448585, Japan

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.80.4737

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

C-13-NMR measurements have been performed to investigate the nature of the insulating state of a quasi-one-dimensional conductor, (DI-DCNQI)(2)Ag, with a quarter-filled band. The 4k(F) charge-density wave has been evidenced below about 220 K by the line separation of the C-13-NMR spectra, which shows a clear charge disproportionation instead of the lattice dimerization encountered in most cases. The present case demonstrates the Wigner crystallization of electrons in the charge-transfer salt and a crucial role of the long-range Coulomb interaction.

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页码：4737 / 4740

页数：4

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