Journal
PHYSICAL REVIEW LETTERS
Volume 104, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.104.106101
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Funding
- Deutsche Forschungsgemeinschaft [MA1618/5, MA1618/15]
- Deutsche Akademische Austauschdienst
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The interactions between adsorbates at a solid-liquid interface were studied by video-rate STM for the case of sulfur on Cu(100) electrode surfaces in HCl solution. Quantitative data were obtained by analyzing the Sad dimer dynamics within the surrounding c(2 x 2)-Cl adlattice as well as the adsorbate configurations. The interactions are repulsive for S-ad separated by one or two lattice spacings and attractive at a separation of root 2 with energies comparable to adsorbates at the solid-vacuum interface. The S-ad diffusion barriers are significantly reduced in the vicinity of a neighboring adsorbate.
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