Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2000-03-31
Phil. Tran. R. Soc. Lond. A 359, 997 (2001).
Physics
Condensed Matter
Soft Condensed Matter
11 pages, 9 figures. Submitted to Phys. Rev. E. See related website http://www.elsie.brandeis.edu
Scientific paper
10.1103/PhysRevE.62.3925
There is increasing evidence that entropy can induce microphase separation in binary fluid mixtures interacting through hard particle potentials. One such phase consists of alternating two dimensional liquid-like layers of rods and spheres. We study the transition from a uniform miscible state to this ordered state using computer simulations and compare results to experiments and theory. We conclude that (1) there is stable entropy driven microphase separation in mixtures of parallel rods and spheres, (2) adding spheres smaller then the rod length decreases the total volume fraction needed for the formation of a layered phase, therefore small spheres effectively stabilize the layered phase; the opposite is true for large spheres and (3) the degree of this stabilization increases with increasing rod length.
Dogic Zvonimir
Fraden Seth
Frenkel Daan
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