243 citations · 2.3k across the 105 of their papers we have counts for
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cond-mat.str-el2009★ 78 cited
Low-temperature properties of the Hubbard model on highly frustrated one-dimensional lattices
O. Derzhko, J. Richter, A. Honecker +2
We consider the repulsive Hubbard model on three highly frustrated one-dimensional lattices -- sawtooth chain and two kagomé chains -- with completely dispersionless (flat) lowest…
cond-mat.str-el2009★ 3 cited
Ground-state degeneracy and low-temperature thermodynamics of correlated electrons on highly frustrated lattices
A. Honecker, O. Derzhko, J. Richter
Highly frustrated lattices yield a completely flat lowest single-electron band. Remarkably, exact many-body ground states can be constructed for the repulsive Hubbard model and the…
cond-mat.str-el2009★ 2 cited
Low-temperature thermodynamics of one class of flat-band models
O Derzhko, J Richter, A Honecker
We consider the antiferromagnetic Heisenberg model and the repulsive Hubbard model for a class of frustrated lattices with a completely dispersionless (flat) lowest one-particle (e…