SU(2) symmetry in a realistic spin-fermion model for cuprate superconductors

We consider the pseudogap (PG) state of high-T sub(c) superconductors in the form of a composite order parameter fluctuating between 2p sub(F)-charge ordering and superconducting (SC) pairing. In the limit of linear dispersion and at the hot spots, both order parameters are related by a SU(2) symmet...

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Veröffentlicht in:	Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2015-05, Vol.91 (20), Article 205124
Hauptverfasser:	Kloss, T., Montiel, X., Pépin, C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Broken symmetry COMPOSITES Condensed matter COPPER OXIDE Curvature Dispersions MATHEMATICAL ANALYSIS Order parameters PARAMETERS Physics SUPERCONDUCTORS Symmetry
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