Defence in the field of engineering physics, John Tracey, M.Sci.
The title of the dissertation is: Simulating Atomic Force Microscopy at the Solid-Liquid Interface
John Tracey, M.Sci., will defend the dissertation "Simulating Atomic Force Microscopy at the Solid-Liquid Interface" on 15 December 2017 at the Aalto University School of Science, lecture hall M1 (M232), Otakaari 1, Espoo. In the dissertation, simulations of AFM experiments were conducted to allow us to improve our understanding of experimental results.
It is possible to image systems at the atomic scale using a technique called atomic force microscopy. Although this technique is very powerful actually understanding the output from such experiments is difficult. Within this dissertation, we analyse such experiments using theoretical methods to help understand the true physical processes.
These theoretical studies are conducted by performing atomistic simulations which allow us to understand how such systems behave. From these simulations, we can then conduct virtual experiments similar to those that are conducted in real life. We can then compare our simulated and experimental images and strive to understand the source of such an image and hence understand the measured system.
In this study, we apply such techniques to Calcite in water to study such things as dissolution as well as chemical identification. In general, the methods presented in the dissertation can be applied to any system in order to assist in the study of a variety of surfaces by atomic force microscopy.
Dissertation release (pdf)
Opponent: Dr. Kislon Voitchovsky, Durham University, UK
Custos: Professor Adam Foster, Aalto University School of Science, Department of Applied Physics
Electronic dissertation: http://urn.fi/URN:ISBN:978-952-60-7718-5