ON THE ROUGHENING TRANSITION OF ANISOTROPIC AND (PSEUDO) HEXAGONAL LATTICES

In this paper the results of the calculations of the roughening transi tion temperatures of anisotropic and (pseudo) hexagonal lattices are p resented. The calculations are based upon a so-called Ising lattice co mbined with a simple model for the representation of the lattice. The lattice has three different bonds of which for two the relative streng ths are varied. The Ising transition temperatures have been calculated for different lattices and for the case of orthorhombic n-paraffin cr ystals they have been compared with experimental values obtained from vapour growth experiments. (C) 1998 Elsevier Science B.V. All rights r eserved.