The cuprate superconductors: a phenomenological overlook

Details The cuprate superconductors: a phenomenological overlook The cuprate superconductors: a phenomenological overlook

2011-08-22

arxiv.org/abs/1108.4311v1

Physics

Condensed Matter

Superconductivity

12 pages, no figures

Scientific paper

We, basing on the quantum critical point (QCP)($p = 0.19 $), propose a phenomenological description on high-$T_c$ superconductivity in the cuprate superconductors, and suggest it divides the whole doping region into two parts: the underdoped region ($p < 0.19 $) and the overdoped region ($ p> 0.19 $). The electrons in the former are localized and form the localized Fermi liquid, a kind of the non-Fermi liquid, where the carriers are the holes; the electrons in the latter are itinerant and form the Fermi liquid, where the carriers are the electrons. We further argue that localization is a prerequisite to the pseudogap; the superconductivity gap and coherence forms at the same time, which both share the same energy scale; coherence induces phonon around the node.

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