Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2002-10-14
J. Phys. A: Math. Gen. 36, 5841 (2003)
Physics
Condensed Matter
Soft Condensed Matter
6 pages, 3 postscript figures. Procedings of International Conference on Strongly Coupled Coulomb Systems, Santa Fe, 2002
Scientific paper
10.1088/0305-4470/36/22/303
Using numerical simulations we show that a variety of novel colloidal crystalline states and multi-step melting phenomena occur on square and triangular two-dimensional periodic substrates. At half-integer fillings different kinds of frustration effects can be realized. A two-step melting transition can occur in which individual colloidal molecules initially rotate, destroying the overall orientational order, followed by the onset of interwell colloidal hopping, in good agreement with recent experiments.
Olson Reichhardt C. J.
Reichhardt Charles
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