par Van Craen, Jean, 
Référence The Journal of Chemical Physics, 63, 6, page (2591-2596)
Publication Publié, 1975
Référence The Journal of Chemical Physics, 63, 6, page (2591-2596)
Publication Publié, 1975
Article révisé par les pairs
| Résumé : | A technique equivalent to the matrix method of Kramers-Wannier is used to compute the residual entropy per particle on semi-infinite strips of width n, completely covered by non-overlapping rectilinear trimers. This thermodynamic quantity is directly related to the largest eigenvalue of a matrix M which has been constructed for two kinds of boundary conditions: periodic ones and simply edges. In the latter case we also have computed the number of distinct arrangements of trimers on close-packed n × n squares. All calculations have been carried out with equal relative activity for horizontal and vertical trimers. For the semi-infinite systems this results in a somewhat different mean density for the two types of molecules. The thermodynamic limit has been approached in three totally independent ways by extrapolating three series of data: the residual entropy per trimer on a ∞ × ∞ square has been determined as SR/k = 0.4754±0.0001. Copyright © 1975 American Institute of Physics. |
