Scanning tunneling microscopic investigation of K-x(H2O)(y)MoS2

被引：34
|
作者：
Wypych, F
Weber, T
Prins, R
机构：
[1] ETH ZURICH,TECH CHEM LAB,CH-8092 ZURICH,SWITZERLAND
[2] UNIV FED PARANA,BR-81531990 CURITIBA,PARANA,BRAZIL
来源：
SURFACE SCIENCE | 1997年 / 380卷 / 01期
关键词：
molybdenum; scanning tunneling microscopy; single crystal surfaces; sulfides; superlattices; surface structure;
D O I：
10.1016/S0039-6028(97)00015-0
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：
The intercalation compound K-x(H2O)(y)MoS2 has been investigated by means of scanning tunneling microscopy. Ln contrast to 2H-MoS2, every Mo center in this compound is octahedrally surrounded by six sulfur ligands, whereas the hydrated K+ cations are located in the van der Waals gap between the layers. Analysis of the STM data showed that the surface structure within the (a,b) plane of K-x(H2O)(y)MoS2 is composed of parallel rows of sulfur atoms which are formed by sulfur ligands located at axial positions in the [MoS6] octahedra. Due to the distortion within the octahedra a wavy surface structure with an (axa root 3) superstructure is formed.
引用
收藏
页码：L474 / L478
页数：5
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