Berlin 2008 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 18: Soft matter
DY 18.5: Vortrag
Mittwoch, 27. Februar 2008, 15:15–15:30, MA 001
From soliton staircases to strain density waves: Monte Carlo simulations of surface-induced deformation of soft colloidal crystals — David Yu-Hang Chui1, •Surijit Sengupta2, and Kurt Binder1 — 1Institut für Physik, Johannes-Gutenberg-Universitüt, Staudingerweg 7, 55099 Mainz, Germany — 2S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700098, India
Two dimensional colloidal crystal interacting with an inverse power law potential was studied using Monte Carlo simulations. Two structured walls, which are created by choosing two rows of particles fixed in the positions of the triangular lattice, provide the confinement to the system. By varying the distance between two walls, the deformation of the two dimensional colloid is induced and typical soliton staircase can be observed. The strain in the system was also calculated and the strain density wave superstructure was found in the different thicknesses of the strips.