Jena 2013 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 19: Poster: Theorie und Modellierung

P 19.9: Poster

Donnerstag, 28. Februar 2013, 14:00–16:00, Poster EG

Kinetic Monte Carlo Approach to Cluster Growth in Magnetron Plasmas — •Kenji Fujioka, Lasse Rosenthal, Sebastian Wolf, and Michael Bonitz — ITAP University of Kiel, Germany

The control of nanoscale structures is of great importance to the development of technologies. Specifically, the nanoparticle may be considered as the essential building block of a variety of structures. A recent example [1] shows that gold particles can be used as seeds for the growth of nanowires with dimensions and shape controlled by the size of the seed. We present here a kinetic Monte Carlo scheme to simulate the growth [2] and size distributions of metallic clusters formed in a magnetron discharge by the agglomeration of sputtered atoms. Given a set of experimental conditions, we show that the size distribution of emitted clusters can be determined within the growth phase. The use of the *first-reaction* [3] method enables us to significantly speed-up the simulation by following only representative cluster sizes within the system. We present some preliminary results and outline the general ideas to simulate a macroscopic system.
M. Heurlin et al, Nature, 492, 90 (2012). [2] B. Smirnov et al, Phys. Scr., 73, 288 (2006). [3] D. Gillespie, J. Comput. Phys., 22, 403 (1976).