29 citations · 52 across the 4 of their papers we have counts for
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cond-mat1996★ 3 cited
Variationnal study of ferromagnetism in the t1-t2 Hubbard chain
S. Daul, P. Pieri, M. Dzierzawa +2
A one-dimensional Hubbard model with nearest and (negative) next-nearest neighbour hopping is studied variationally. This allows to exclude saturated ferromagnetism for .…
cond-mat1996★ 29 cited
Low density ferromagnetism in the Hubbard model
P. Pieri, S. Daul, D. Baeriswyl +2
A single-band Hubbard model with nearest and next-nearest neighbour hopping is studied for , 2, 3, using both analytical and numerical techniques. In one dimension, saturated…