%0 Journal Article
%T Critical properties of the classical Heisenberg and XY models : A mean field renormalization group study
%A A. Sadeghi
%A F. Shahbazi
%J Iranian Journal of Physics Research
%D 2007
%I Isfahan University of Technology
%X Using both mean field renormalization group (MFRG) and Surface-Bulk MFRG (SBMFRG), we study the critical behavior of the classical Heisenberg and XY models on a simple cubic lattice. Critical temperatures as well as critical exponents, characteristic the universality classes of these two models were calculated, analytically for1, 2, 3 and 4 spin clusters. The results are in good agreement with higher accurate methods such as Monte Carlo and High- temperature series.
%K renormalitation group
%K mean field theory
%U http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-86&slc_lang=en&sid=1