COPPER INTERCALATION IN 1T-TAS2

被引：32
|
作者：
PETTENKOFER, C [1 ]
JAEGERMANN, W [1 ]
PARKINSON, BA [1 ]
机构：
[1] DUPONT CO,DEPT CENT RES & DEV,WILMINGTON,DE 19880
来源：
SURFACE SCIENCE | 1991年 / 251卷
关键词：
D O I：
10.1016/0039-6028(91)91059-7
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Cu evaporated onto the (0001) cleavage plane of 1T-TaS2 is completely intercalated into the layered compound as a Cu(I) species. Even for higher doses no metallic overlayer is observed. The nearly commensurate square-root 13 x square-root 13 superstructure due to periodic lattice distortions is transformed into a 3 x 3 superstructure. In the UP-spectra of the intercalation compound the opening of a small gap at the valence band edge is observed. The metal to semiconductor transition at 180 K is lost for the intercalation compound.
引用
收藏
页码：583 / 586
页数：4
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