Evidence for a Quantum Phase Transition inPr2−xCexCuO4−δfrom Transport Measurements

2003/10/31 by Y. Dagan, M. M. Qazilbash, C. Hill +3 · 2 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.92.167001

published as Phys. Rev. Lett. 92, 167001 (2004) · 11 pages 4 figures Phys. Rev. Lett. 92, 167001 (2004)

openalex publication_date 2004/04/21 · arxiv created 2004/08/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The doping and temperature dependences of the Hall coefficient, R_H, and ab-plane resistivity in the normal state down to 350 mK is reported for oriented films of the electron-doped high-T_c superconductor Pr_2\ensuremath-xCe_xCuO_4\ensuremath-\ensuremathδ. The doping dependences of \ensuremathβ (\ensuremathρ=\ensuremathρ₀+AT^\ensuremathβ) and R_H (at 350 mK) suggest a quantum phase transition at a critical doping near x=0.165.

Citations

• Sharp Signature of adx2−y2Quantum Critical Point in the Hall Coefficient of Cuprate Superconductors
• Magnetotransport in nearly antiferromagnetic metals
• Singular or non-Fermi liquids

Cited by

• Origin of the Anomalous Low Temperature Upturn in the Resistivity of the Electron-Doped Cuprate Superconductors
• Tunneling into the Normal State ofPr2−xCexCuO4