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Stripe formation: A quantum critical point for cuprate superconductors

C. Castellani·C. Di Castro·M. Grilli
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Abstract

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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C. Castellani, C. Di Castro, M. Grilli. 1998-04-16. Stripe formation: A quantum critical point for cuprate superconductors. https://doi.org/10.1016/s0022-3697(98)00085-7

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