DMRG study of ferromagnetism in a one-dimensional Hubbard model
نویسنده
چکیده
The one dimensional Hubbard model with nearest and (negative) next-nearest neighbour hopping has been studied with the densitymatrix renormalization group (DMRG) method. A large region of ferromagnetism has been found for finite density and finite on-site interaction. PACS : 74.25.Ha, 75.10.Lp
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