Spin and Charge Excitations in the Two-Dimensional t-J Model: Comparison with Fermi and Bose Systems

dc.creatorPutikka, W. O.
dc.creatorLuchini, M. U.
dc.creatorSingh, R. R. P.
dc.date1999-12-14
dc.date.accessioned2026-07-07T03:15:41Z
dc.date.available2026-07-07T03:15:41Z
dc.descriptionUsing high temperature series we calculate temperature derivatives of the spin-spin and density-density correlation functions to investigate the low energy spin and charge excitations of the two-dimensional t-J model. We find that the temperature derivatives indicate different momentum dependences for the low energy spin and charge excitations. By comparing short distance density-density correlation functions with those of spinless fermions and hard core bosons, we find that the t-J model results are intermediate between the two cases, being closer to those of hard core bosons. The implications of these results for superconductivity are discussed.
dc.description4 pages, 6 figures. Contact the first author for higher resolution versions of the color figures
dc.identifierhttps://arxiv.org/abs/cond-mat/9912269
dc.identifierhttp://arxiv.org/abs/cond-mat/9912269
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/30071
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleSpin and Charge Excitations in the Two-Dimensional t-J Model: Comparison with Fermi and Bose Systems
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