On 8 Jan 2009, at 13:34, Brian Keith wrote:

I am endeavoring to create a rectangular QHAF lattice that has some of the magnetic sites "missing". Does anyone have any advice on how to go about creating a model that includes this randomness, these random, exchangeless holes in the lattice?

thanks in advance, Brian

There are two ways of doing that. One is using a depleted lattice like the "depleted square lattice". The other is creating the depleted lattice in a seperate program and writing it as a graph into an XML file that is then used by the ALPS programs. Matthias