Regensburg 2013 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 15: Poster Session

MM 15.7: Poster

Montag, 11. März 2013, 18:00–20:00, Poster E

Molecular Dynamic Simulation of atomic deposition between MnAs cluster — •Andreas Rühl and Christian Heiliger — I. Physikalisches Institut, Justus Liebig Universtität Giessen, D-35392 Giessen, Germany

MnAs is a promising ferromagnetic material for magnetoelectronic devices, in particular as nano-scaled clusters, providing a great tunability concerning the shape and position. We investigate hexagonal MnAs clusters which are separated by a metal. Such structures could be produced by using a FIB (focused ion beam) two disconnect two touching MnAs clusters and to deposit a metal between them. Before doing a molecular dynamic simulation of the problem at hand one needs to find the corresponding effective potentials describing the interaction of the MnAs surface with the metal atoms. We did this by fitting the chosen potential model, here the Embedded Atom Method, to a set of ab initio data (Force Matching Method).