RANDOMLY DECORATED ISING-MODEL ON THE SQUARE LATTICE

Citation
Ma. Costa et Ll. Goncalves, RANDOMLY DECORATED ISING-MODEL ON THE SQUARE LATTICE, Journal of magnetism and magnetic materials, 140, 1995, pp. 2193-2194
Citations number
6
Categorie Soggetti
Material Science","Physics, Condensed Matter
ISSN journal
03048853
Volume
140
Year of publication
1995
Part
3
Pages
2193 - 2194
Database
ISI
SICI code
0304-8853(1995)140:<2193:RDIOTS>2.0.ZU;2-J
Abstract
The two-dimensional Ising model decorated with Ising spins of magnitud es s = 1 and 1/2 is considered. The bonds are randomly decorated with n spins and the random variable is supposed to satisfy an annealed dis tribution. The model is exactly solved by mapping it onto an effective 2D Ising model. The phase diagram is determined and the lim n --> inf inity is discussed.