Origin of the Anomalous Low Temperature Upturn in the Resistivity of the Electron-Doped Cuprate Superconductors

2004/08/24 by Y. Dagan, A. Biswas, M. C. Barr +6 · 2 citations
Materials Science · Physics and Astronomy · #Magnetic and transport properties of perovskites and related materials #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.94.057005

published as Phys. Rev. Lett. 94, 057005 (2005) · 5 pages + figures captions and references

arxiv created 2004/08/24 · openalex publication_date 2005/02/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The temperature, doping, and field dependences of the magnetoresistance (MR) in Pr_2\ensuremath-xCe_xCuO_4\ensuremath-\ensuremathδ films are reported. We distinguish between orbital MR, found when the magnetic field is applied perpendicular to the ab planes, and the nearly isotropic spin MR. The latter, the major MR effect in the superconducting samples, appears in the region of the doping-temperature phase diagram where d\ensuremathρ/dT<0, or an upturn in the resistivity appears. We conclude that the upturn originates from spin scattering processes.

Citations

• Evidence for a Quantum Phase Transition inPr2−xCexCuO4−δfrom Transport Measurements
• Fourfold oscillations and anomalous magnetoresistance irreversibility in the nonmetallic regime ofPr1.85Ce0.15CuO4

Cited by

• Anisotropy of the in-plane angular magnetoresistance of electron-dopedSr1−xLaxCuO2thin films
• Tunable superconductivity in parent cuprate Pr2CuO4±δ thin films*