Title: Phase transitions of patchy colloids in two dimensions
Other Titles: Phasenübergänge von Kolloiden mit dekorierten Oberflächen in zwei Dimensionen
Language: English
Authors: Wagner, Susanne 
Qualification level: Diploma
Advisor: Kahl, Gerhard 
Issue Date: 2017
Number of Pages: 52
Qualification level: Diploma
In this thesis I study a two dimensional system of patchy colloids restricted to closest packing and its phase transition from an orientationally ordered into a disordered phase. I approached this problem by first defining orientational order by determining bonding patterns that emerge at low temperatures for different sizes of the patch. As the temperature is increased bonds start to break and this transition is studied via a suitable order parameter. The systems were investigated via Monte-Carlo simulations. In order to identify the emerging bonding structures, a density and a cluster size analysis were employed. For the case where particles can form up to one bond (dimers), an order parameter was defined. With this order parameter at hand a correlation function was defined and was calculated for different temperatures in order to study the spatial range of the order in different phases.
Keywords: Kolloide; Phasenübergänge; Computersimulationen
colloids; phase transitions; computer simulations
URI: https://resolver.obvsg.at/urn:nbn:at:at-ubtuw:1-95384
Library ID: AC13641033
Organisation: E136 - Institut für Theoretische Physik 
Publication Type: Thesis
Appears in Collections:Thesis

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