| Numéro |
J. Phys. I France
Volume 5, Numéro 12, December 1995
|
|
|---|---|---|
| Page(s) | 1563 - 1571 | |
| DOI | https://doi.org/10.1051/jp1:1995217 | |
J. Phys. I France 5 (1995) 1563-1571
The Persistence Length in a Random Surface Model
John H. Ipsen1 and Claus Jeppesen21 Department of Physical Chemistry, The Technical University of Denmark, DK-2800 Lyngby, Denmark
2 Materials Research Laboratory, University of California. Santa Barbara, CA 93106, USA
(Received 9 June 1995, revised 28 August 1995, accepted 5 September 1995)
Abstract
Randomly triangulated, self-avoiding surfaces with topology of a sphere have been studied by use
of Monte Carlo simulation techniques. Flexible surfaces with small bending elasticity moduli
are considered. Analysis of surface characteristics like volume, enthalpy and radius of
gyration support that self-avoiding, fluid surfaces display properties of branched polymers at
length scales larger than some persistence length
. The simulation data can be
rationalized in terms of simple phenomenological scaling relations and mean-field theory.
Estimates of
up to a multiplicative factor are given.
© Les Editions de Physique 1995