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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/1226

Title: Phase separation in Hubbard model
Authors: Samson, J.H.
Issue Date: 1997
Publisher: Polish Acad Sciences Inst Physics
Citation: SAMSON, J.H., 1997. Phase separation in Hubbard model. IN: Acta Physica Polonica A, 92 (2), pp. 363-366.
Abstract: The Hartree-Fock ground-state phase diagram of the one-dimensional Hubbard model is calculated in the mu-U plane, restricted to phases with no charge density modulation. This allows antiferromagnetism, saturated ferromagnetism, spiral spin density waves and a collinear structure with unit cell up arrow up arrow down arrow down arrow. 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/pi(2) U)(1/3) from half-filling.
Description: This paper was submitted for publication at the European Conference on Physics of Magnetism 96, Poznan, Poland, 24 - 28 June 1996.
URI: https://dspace.lboro.ac.uk/2134/1226
Appears in Collections:Conference Papers (Physics)

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