Campus Units

Chemistry, Physics and Astronomy, Materials Science and Engineering, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

2015

Journal or Book Title

Physical Review B

Volume

91

Issue

4

First Page

045426-1

Last Page

045426-7

DOI

10.1103/PhysRevB.91.045426

Abstract

Sulfur-metal complexes, containing only a few atoms, can open new, highly efficient pathways for transport of metal atoms on surfaces. For example, they can accelerate changes in the shape and size of morphological features, such as two-dimensional nanoclusters, over time. In this study we perform STM under conditions that are designed to specifically isolate such complexes. We find a new, unexpected S-Cu complex on the Cu(111) surface, which we identify as Cu2S3. We propose that Cu2S3 enhances mass transport in this system, which contradicts a previous proposal based on Cu3S3. We analyze bonding within these Cu-S complexes, identifying a principle for stabilization of sulfur complexes on coinage metal surfaces.

Comments

This article is from Physical Review B 91 (2015): 045426, doi: 10.1103/PhysRevB.91.045426. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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