The ground state of heavily-overdoped non-superconducting La2-xSrxCuO4

Abstract

We report detailed thermodynamic and transport measurements for non-superconducting La1.7Sr0.3CuO4. Collectively, these data reveal that a highly-correlated Fermi-liquid ground state exists in La2-xSrxCuO4 beyond the superconducting dome, and confirm that charge transport in the cuprates is dominated at finite temperatures by intense electron-electron scattering.

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