Quantum critical point for stripe order: An organizing principle of cuprate superconductivity

Details Quantum critical point for stripe order: An organizing principle of cuprate superconductivity Quantum critical point for stripe order: An organizing principle of cuprate superconductivity

2012-04-02

arxiv.org/abs/1204.0490v1

Physics

Condensed Matter

Superconductivity

Written for a special issue of Physica C on "Stripes and electronic liquid crystals

Scientific paper

A spin density-wave quantum critical point (QCP) is the central organizing principle of organic, iron-pnictide, heavy-fermion and electron-doped cuprate superconductors. It accounts for the superconducting Tc dome, the non-Fermi-liquid resistivity, and the Fermi-surface reconstruction. Outside the magnetically ordered phase above the QCP, scattering and pairing decrease in parallel as the system moves away from the QCP. Here we argue that a similar scenario, based on a stripe-order QCP, is a central organizing principle of hole-doped cuprate superconductors. Key properties of Eu-LSCO, Nd-LSCO and YBCO are naturally unified, including stripe order itself, its QCP, Fermi-surface reconstruction, the linear-T resistivity, and the nematic character of the pseudogap phase.

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