Now showing items 1-4 of 4

    • Adsorption site of alkali metal overlayers on Si(001) 2 × 1 

      Batra, I. P.; Ciraci, S. (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 theory of the scanning tunneling microscope 

      Tekman, Ahmet Erkan (Bilkent University, 1988)
      The Scanning Tunneling Microscope is proven to be one of the most powerful tools for surface structure determination. Present theories are able to explain the operation of the microscope when the tip is far from the ...
    • Atomic-scale tip-sample interactions and contact phenomena 

      Ciraci, S. (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 ...
    • Scanning probe microscopy for optoelectronic characterization at the nanoscale 

      Ürel, Mustafa (Bilkent University, 2010)
      In this work, we propose methods for electrical characterization of nanostructured surfaces using electrostatic force and tunneling current measurements in scanning probe microscopy. Resolution smaller than 10 nm in ...