Stripe formation: A quantum critical point for cuprate superconductors

Details Stripe formation: A quantum critical point for cuprate superconductors Stripe formation: A quantum critical point for cuprate superconductors

1998-04-02

arxiv.org/abs/cond-mat/9804014v2

Physics

Condensed Matter

Strongly Correlated Electrons

Proceedings of the Cape Cod Conference on "Spectroscopies in Novel Superconductors, SNS 97", to appear on J. Phys. and Chem. o

Scientific paper

10.1016/S0022-3697(98)00085-7

We discuss the effects of a quantum critical point located nearby optimum doping and related to local charge segregation (stripe phase). The fluctuations in the critical region produce at the same time a strong pairing mechanism and a non-Fermi liquid behavior in the normal phase above the superconducting critical temperature. Superconductivity is a stabilizing mechanism against charge ordering, i.e. the incommensurate charge density wave quantum critical point is unstable with respect to superconductivity. A complete scenario for the cuprates is presented.

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