Now showing items 1-3 of 3

    • Adhesive energy, force and barrier height between simple metal surfaces 

      Çıracı, Salim; Tekman, E.; Gökçedag, M.; Batra, I. P.; Baratoff, A. (1992)
      Using the self-consistent field pseudopotential method we calculated the adhesive energy, perpendicular and lateral forces and barrier height between two rigid A1(001) slabs modeling the sample and a blunt tip. We found ...
    • Adsorption site of alkali metal overlayers on Si(001) 2 × 1 

      Batra, I. P.; Çıracı, Salim (1992)
      The alkali metal semiconductor interfaces are currently being investigated by a variety of tools. Most studies to date at half a monolayer coverage have shown preference for either a quasi-hexagonal (H) site or a long-bridge ...
    • Atomic-scale tip-sample interactions and contact phenomena 

      Çıracı, Salim (1992)
      Tip-sample interactions become crucial owing to increased overlap at small tip-sample separation. The potential barrier collapses before the point of maximum attraction on the apex of the tip, but the effective barrier may ...