Realistic model tips in simulations of nc-AFM

Abstract

In this study we use first principle methods to study the interaction of three different tip models with a CaF2(111) surface. The tip models are based on a ‘realistic’ approach to tip simulation and consist of a pure silicon tip, an oxygen terminated silicon tip and a water contaminated silica (SiO2) tip. We find that each tip demonstrates characteristic… (More)

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5 Figures and Tables