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Inhomogeneous quantum antiferromagnetism on periodic lattices
2006
Physical Review B
We study quantum antiferromagnets on two-dimensional bipartite lattices. We focus on local variations in the properties of the ordered phase which arise due to the presence of inequivalent sites or bonds in the lattice structure, using linear spin wave theory and quantum Monte Carlo methods. Our primary finding is that sites with a high coordination tend to have a low ordered moment, at odds with the simple intuition of high coordination favoring more robust Neel ordering. The lattices
doi:10.1103/physrevb.74.184410
fatcat:cqinredlhzektlov4uiprltxhi