فهرست نشریات علمی دسترسی آزاد ایران

In the present work, characterization of the surface trenches and vacancies with Amplitude Modulation AFM (AM-AFM) using Molecular Dynamics (MD) is simulated and the eects of the tip shape on the resulting images are investigated. The simulated system includes a recently developed gold coated AFM probe which interacts with a sample including a surface trench or a single-atom vacancy. In order to examine the behavior of the above system, including dierent transition metals, a Molecular Dynamics (MD) simulation with Sutton-Chen (SC) interatomic potential is used. Special attention is dedicated to the study of tip geometry eects such as the tip apex radius, the tip cone angle, the probe tilt angle, the tip apex atoms number, and the tip axis direction with respect to the FCC lattice structure on the resulting images.