Quantitative measurements of adsorbate-adsorbate interactions at solid-liquid interfaces

Taranovskyy A., Tansel T., Magnussen O.

Physical Review Letters, cilt.104, sa.10, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 104 Sayı: 10
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1103/physrevlett.104.106101
  • Dergi Adı: Physical Review Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Hacettepe Üniversitesi Adresli: Hayır

Özet

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(2×2)-Cl adlattice as well as the adsorbate configurations. The interactions are repulsive for Sad separated by one or two lattice spacings and attractive at a separation of √2 with energies comparable to adsorbates at the solid-vacuum interface. The Sad diffusion barriers are significantly reduced in the vicinity of a neighboring adsorbate. © 2010 The American Physical Society.