%0 Journal Article
%A Campos, Isabel
%A Fernández Pérez, Luis Antonio
%A Tarancón, Alfonso
%T Antiferromagnetic four-dimensional O(4) model
%D 1997
%@ 1550-7998
%U https://hdl.handle.net/20.500.14352/60089
%X We study the phase diagram of the four-dimensional O(4) model with first- (β_(1)) and second- (β2) neighbor couplings, especially in the β_(2) < 0 region, where we find a line of transitions which seems to be second order. We also compute the critical exponents on this line at the point β_(1) = 0 (F_(4) lattice) by finite-size scaling techniques up to a lattice size of 24, these exponents being different from the mean-field ones.
%~