Abstract
Abstract
We use Monte Carlo simulation to determine the stable structures in the second-neighbour Ising model on the face-centred cubic lattice. Those structures are
for strongly antiferromagnetic second-neighbour interactions and
for ferromagnetic and weakly antiferromagnetic second neighbours. We find a third stable “intermediate” antiferromagnetic phase with
symmetry, and calculate the paramagnetic transition temperature for each. The transition temperature depends strongly on second-neighbour interactions which are not frustrated. We determine a sublattice structure suitable for solving this problem with mean-field theory.
Subject
General Physics and Astronomy