Document Type
Article
Date
11-13-1996
Language
English
Disciplines
Physics
Description/Abstract
We study the folding of the regular two-dimensional triangular lattice embedded in the regular three-dimensional Face-Centred Cubic lattice, a discrete model for the crumpling of membranes. Possible folds are complete planar folds, folds with the angle of a regular tetrahedron (71 degrees) or with that of a regular octahedron (109 degrees). We study this model in the presence of a negative bending rigidity K, which favours the folding process. We use both a cluster variation method (CVM) approximation and a transfer matrix approach. The system is shown to undergo two separate geometrical transitions with increasing |K|: a first discontinuous transition separates a phase where the triangular lattice is preferentially wrapped around octahedra from a phase where it is preferentially wrapped around tetrahedra. A second continuous transition separates this latter phase from a phase of complete folding of the lattice on top of a single triangle.
Recommended Citation
Bowick, Mark; Golinelli, Oliver; Guitter, Emmanuel; and Mori, S., "Geometrical Folding Transitions of the Triangular Lattice in the Face-Centred Cubic Lattice" (1996). Physics - All Scholarship. 167.
https://surface.syr.edu/phy/167
Source
Harvested from Arxiv.org
Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.
Additional Information
25 pages, uses harvmac(b) and epsf, 14+1 figures included More information at http://arxiv.org/abs/cond-mat/9611105