M.Kreer, M.Scheringer, K.Binder, K.Kremer, R.Hilfer
in: Computer Simulation Studies in Condensed Matter Physics IV
edited by: D.P. Landau and K.K. Mon and H.B. Schüttler
Springer Verlag, Berlin, 159 (1993)
Monday, February 18, 1991
Lipid monolayers at high densities are modelled as rigid rods grafted to an interface at the sites of a regular lattice. The transition between the state where the rods are uniformly tilted to a disordered state with no (average) tilt is studied by computer simulation methods. For the one-dimensional model, the molecular dynamics approach is found much less suitable to equilibrate the system rather than Monte Carlo methods. Both in d=2 discretized versions of Monte Carlo codes are much more efficient than continuum Monte Carlo methods, in spite of huge storage requirements. While in d=l the transition occurs at temperature T=0 via the spontaneous creation of solitons, at d=2 a finite temperature first order transition occurs.
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