ISSN:
1434-6036
Keywords:
PACS. 74.25.Dw Superconductivity phase diagrams - 71.10.Hf Non-Fermi-liquid ground states, electron phase diagrams and phase transitions in model systems - 74.20.Fg BCS theory and its development
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: We describe the spectral properties of underdoped cuprates as resulting from a momentum-dependent pseudogap in the normal-state spectrum. Such a model accounts, within a BCS approach, for the doping dependence of the critical temperature and for the two-parameter leading-edge shift observed in the cuprates. By introducing a phenomenological temperature dependence of the pseudogap, which finds a natural interpretation within the stripe quantum-critical-point scenario for high- superconductors, we reproduce also the bifurcation near optimum doping. Finally, we briefly discuss the different role of the gap and the pseudogap in determining the spectral and thermodynamical properties of the model at low temperatures.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510070163
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