1. The problem statement, all variables and given/known data I am currently working as an intern in a research institute (I'm a 3rd yr undergrad) and my supervisor has asked me to create a simulation from a particular model - please see linked <http://journals.aps.org/prb/abstract/10.1103/PhysRevB.69.045202> [Broken] or attached paper. I have been looking at this for a couple of months and I'm stumped, honestly it seems way over my head - however I do not want to dissapoint my supervisor. He's looking for me to create a simulation that will output bulk magnetization based on varying temperature. Can someone please help me walk through the calculations step by step? I figure if I can understand the mechanics of the problem the physics will become apparent shortly after that. 2. Relevant equations See attached paper. 3. The attempt at a solution No solutions attempted as such, just a few bare boned scripts in Matlab trying to list all knowns etc.