2 papers
cond-mat2003
Soft modes in the easy plane pyrochlore antiferromagnet
J D M Champion, P C W Holdsworth
Thermal fluctuations lift the high ground state degeneracy of the classical nearest neighbour pyrochlore antiferromagnet, with easy plane anisotropy, giving a first order phase tra…
cond-mat.str-el2003
A pure Hubbard model with demonstrable pairing adjacent to the Mott-insulating phase
J. D. Champion, M. W. Long
We introduce a Hubbard model on a particular class of geometries, and consider the effect of doping the highly spin-degenerate Mott-insulating state with a microscopic number of ho…