Open AccessThe phase diagram of the Gauss model on a decorated square lattice
Author(s) -
Changchun Sun
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.086802
Subject(s) - square lattice , gauss , phase diagram , lattice (music) , square (algebra) , condensed matter physics , statistical physics , k nearest neighbors algorithm , physics , mathematics , phase (matter) , quantum mechanics , computer science , geometry , ising model , artificial intelligence , acoustics
Using equivalent transformation and spin-rescaling methods, the Gauss model on a decorated square lattice is studied. It is found that the square decorated Gauss lattice could be transformed into a regular square Gauss lattice with nearest-neighbor, and next-nearest-neighbor interactions. By calculating the regular square-lattice Gauss model, the critical temperature of the Gauss model is obtained on a decorated square lattice, and the exact phase diagram of this system can also be obtained.