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DMRG study of ferromagnetism in a one-dimensional Hubbard model

S. Daul, R. Noack

cond-mat.str-elarXiv:cond-mat/9612056

Abstract

The one dimensional Hubbard model with nearest and (negative) next-nearest neighbour hopping has been studied with the density-matrix renormalization group (DMRG) method. A large region of ferromagnetism has been found for finite density and finite on-site interaction.

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