Extraction of Interaction Energies from Scanning Tunneling Microscopy and Field-Ion Microscopy Data.

摘要

The extraction of adatom-adatom interaction energies from STM and FIM images is discussed. For the case of comparing experimental data with a solved model (e.g. Monte-Carlo simulations), an expression for the expected precision is derived. It is demonstrated that in the absence of any Monte-Carlo calculations the interaction energies can be extracted if measurements are made at more than one temperature. The-relative uncertainty in the determination of the interaction energies for the case of a solved vs. an unsolved model as a function of system size and temperature is presented.