Phase separation in the one-dimensional Hubbard model

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dc.creatorSamson, J. H.
dc.date1996-07-02
dc.date.accessioned2026-07-07T03:08:41Z
dc.date.available2026-07-07T03:08:41Z
dc.descriptionThe Hartree-Fock ground-state phase diagram of the one-dimensional Hubbard model is calculated in the $μ-U$ plane, restricted to phases with no charge density modulation, extending the results presented in cond-mat/9511116. This allows antiferromagnetism, saturated ferromagnetism, spiral spin density waves and a collinear structure with unit cell $\uparrow \uparrow \downarrow \downarrow$. The spiral phase is unstable against phase separation near quarter-, half- and three-quarter-filling. For large $U$ this occurs at hole (or electron) doping of $(3t/π^{2}U)^{1/3}$ from half filling.
dc.description4 pages, LaTeX with one PostScript figure, using epsf. Presented at Physics of Magnetism 96, Poznań, Poland; proceedings to be published in Acta Physica Polonica
dc.identifierhttps://arxiv.org/abs/cond-mat/9607011
dc.identifierhttp://arxiv.org/abs/cond-mat/9607011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/27589
dc.subjectCondensed Matter
dc.titlePhase separation in the one-dimensional Hubbard model
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