OBSERVATION OF MOTT LOCALIZATION GAP USING LOW-TEMPERATURE SCANNING TUNNELING SPECTROSCOPY IN COMMENSURATE 1T-TAS2

被引：108

作者：

KIM, JJ ^{[1
]}

YAMAGUCHI, W ^{[1
]}

HASEGAWA, T ^{[1
]}

KITAZAWA, K ^{[1
]}

机构：

[1] UNIV TOKYO,DEPT SUPERCONDUCT,BUNKYO KU,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.73.2103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The site-specified tunneling spectroscopy on 1T-TaS2 at 77 K and room temperature indicated a wide opening of energy gap at the Fermi level at 77 K. The gap at the Fermi level was attributed to the Mott localization in the commensurate charge density wave (CDW) phase. The determined gap size on both sides of the Fermi level was about 400-500 mV at 77 K. A significant charge transfer was observed from CDW trough to crest. This charge transfer was derived from the electron localization on the CDW crest induced by Mott localization.

引用

页码：2103 / 2106

页数：4

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