Spin-charge gauge approach to metal-insulator crossover and transport properties in High-T$_c$ cuprates

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dc.creatorMarchetti, P. A.
dc.creatorSu, Z. B.
dc.creatorYu, L.
dc.date2007-01-08
dc.date2007-01-13
dc.date.accessioned2026-07-07T10:21:58Z
dc.date.available2026-07-07T10:21:58Z
dc.descriptionThe spin-charge gauge approach to consider the metal-insulator crossover (MIC) and other anomalous transport properties in High-T$_c$ cuprates is briefly reviewed. A U(1) field gauging the global charge symmetry and an SU(2) field gauging the global spin-rotational symmetry are introduced to study the two-dimensional $t-J$ model in the limit $t\gg J$. The MIC as a clue to the understanding of the ``pseudogap'' (PG) phase, is attributed to the competition between the short-range antiferromagnetic order and dissipative motion of charge carriers coupled to the slave-particle gauge field. The composite particle formed by binding the charge carrier (holon) and spin excitation (spinon) via the slave particle gauge field exhibits a number of peculiar properties, and the calculated results are in good agreement with experimental data for both PG and ``strange metal'' phases. Connections to other gauge field approaches in studying the strong correlation problem are also briefly outlined.
dc.description32 pages, to appear in the special issue on "Correlated Electrons" of J. Phys.: Condens. Matt
dc.identifierhttps://arxiv.org/abs/cond-mat/0701139
dc.identifierhttp://arxiv.org/abs/cond-mat/0701139
dc.identifierJ.Phys.Condens.Matter19:125212,2007
dc.identifierdoi:10.1088/0953-8984/19/12/125212
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175356
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.subjectHigh Energy Physics - Theory
dc.titleSpin-charge gauge approach to metal-insulator crossover and transport properties in High-T$_c$ cuprates
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