Role of oxygen in the electron-doped superconducting cuprates

2006/02/06 by J. S. Higgins, Y. Dagan, M. C. Barr +2 · 65 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Cerium #Condensed matter physics #Cuprate #Doping #Electrical resistivity and conductivity #Electron #Magnetic and transport properties of perovskites and related materials #Materials science #Metallurgy #Nuclear physics #Oxygen #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Superconductivity #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.73.104510

published in Physical Review B 73(10) (American Physical Society) · 5 pages, 5 figures

arxiv created 2006/02/06 · openalex publication_date 2006/03/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We report on resistivity and Hall measurements in thin films of the electron-doped superconducting cuprate Pr_2\ensuremath-xCe_xCuO_4\ifmmode±\else\textpm\fi\ensuremathδ. Comparisons between x=0.17 samples subjected to either ion irradiation or oxygenation demonstrate that changing the oxygen content has two separable effects: (1) a doping effect similar to that of cerium and (2) a disorder effect. These results are consistent with prior speculations that apical oxygen removal is necessary to achieve superconductivity in this compound.

Citations

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

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• Progress and perspectives on electron-doped cuprates