Walen, H.Liu, D. J.Oh, J.Lim, H.Evans, J. W.Aikens, Christine M.Kim, Y.Thiel, P. A.2016-04-042016-04-042015-01-22http://hdl.handle.net/2097/32265Citation: Walen, H., Liu, D. J., Oh, J., Lim, H., Evans, J. W., Aikens, C. M., . . . Thiel, P. A. (2015). Cu2S3 complex on Cu(111) as a candidate for mass transport enhancement. Physical Review B, 91(4), 7. doi:10.1103/PhysRevB.91.045426Sulfur-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.This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).Scanning Tunneling MicroscopeSurface Self-DiffusionMetal-SurfacesSulfurApproximationCatalystArticle