511 citations · 1.3k across the 34 of their papers we have counts for
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cond-mat1993★ 13 cited
Possible first order transition in the two-dimensional Ginzburg-Landau model induced by thermally fluctuating vortex cores
Dierk Bormann, Hans Beck
We study the two-dimensional Ginzburg-Landau model of a neutral superfluid in the vicinity of the vortex unbinding transition. The model is mapped onto an effective interacting vor…
cond-mat1993★ 6 cited
Effective t-J Hamiltonian for the Copper Oxides
J. J. Rodriguez-Nunez, Hans Beck
Starting from the Emery model, which is assumed to describe the copper oxygen planes, and including direct oxygen hopping matrix elements, we have been able to derive the effective…