INVESTIGATING THE EFFECT OF TIP STRUCTURE AND ELASTICITY ON ATOMIC-RESOLUTION SCANNING PROBE MICROSCOPY
TÜBİTAK 2209/A Research Grant
Start Date: October 1st, 2012
Completion Date: July 31st, 2017
Atomic-resolution scanning probe microscopy experiments suffer from various problems including thermal drift, piezo nonlinearities, variability in tip apex chemistry, structural asymmetry of the tip apex, as well as tip elasticity. In this project, the effects of tip elasticity and asymmetry on atomic-resolution scanning probe microscopy experiments conducted on various model sample surfaces are investigated. Simulations conducted via analytical potentials and simple tip apex models are augmented with molecular dynamics (MD) approaches. It is projected that a better understanding of the role of the tip in scanning probe microscopy will allow more meaningful comparisons between experimental results obtained by different research groups.