Surface width of the Solid-On-Solid models

Abstract

The low-temperature series for the surface width of the Absolute value Solid-On-Solid model and the Discrete Gaussian model both on the square lattice and on the triangular lattice are generated to high orders using the improved finite-lattice method. The series are analyzed to give the critical points of the roughening phase transition for each model.

Comments: 3 pages, LaTeX, to appear in the proceedings of Lattice'97, Edinburgh, Scotland, July 22--26, 1997