Relationship between the c(4 x 2) and the (root 3 x root 3)R30 degrees phases in alkanethiol self-assembled monolayers on Au(111)

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Authors

Colleges, School and Institutes

Abstract

Transformation between the two well-known phases of alkanethiol monolayers on Au(111), c(4 x 2) and (root 3 x root 3)R30 degrees, has been studied using scanning tunneling microscopy in ultra-high vacuum. Among the many versions of the c(4 x 2) phases observed, one particular structure where a lateral shift of adsorbate by as much as 0.17 nm within the unit cell is found. This lateral shift along the [11 (2) over bar] direction corresponds to the movement of one adsorbed unit, towards its nearest neighbour from one hollow site to another (fcc to hcp, or hcp to fcc).

Details

Original languageEnglish
Pages (from-to)11958-11964
Number of pages7
JournalPhysical Chemistry Chemical Physics
Volume13
Issue number25
Publication statusPublished - 1 Jan 2011