Role of oxygen in the electron-doped superconducting cuprates

Abstract

We report on resistivity and Hall measurements in thin films of the electron-doped superconducting cuprate Pr${}_{2-x}$Ce${}_x$CuO${}_{4\pm \delta }$. 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.

arXiv comment5 pages, 5 figures

References in corpus (6)

• Evidence for a quantum phase transition in the electron-doped cuprate Pr2-xCexCuO4+d from Hall and resistivity measurements
• Effect of disorder outside the CuO${}_2$ planes on $T_c$ of copper oxide superconductors
• Constant effective mass across the phase diagram of high-T${}_c$ cuprates
• Spin Correlations and Magnetic Order in Nonsuperconducting Nd_{2-x}Ce_xCuO_{4\pmδ}
• Theory of Low-Temperature Hall Effect in Electron-Doped Cuprates
• Electronically competing phases and their magnetic field dependence in electron-doped nonsuperconducting and superconducting Pr0.88LaCe0.12CuO4

Cited by in corpus (24)

• Progress and perspectives on the electron-doped cuprates
• Microscopic annealing process and its impact on superconductivity in T'-structure electron-doped copper oxides
• Superconductivity phase diagrams of electron doped cuprates R(2-x)CexCuO4 (R = La, Pr, Nd, Sm, and Eu)
• Hole-pocket-driven superconductivity and its universal features in the electron-doped cuprates
• Fermi Surface reconstruction and anomalous low temperature resistivity in electron-doped La2-xCexCuO4
• Advances in single crystal growth and annealing treatment of electron-doped HTSC
• Angle-resolved photoemission spectroscopy of the low-energy electronic structure of superconducting Pr${}_2$CuO${}_4$ driven by oxygen non-stoichiometry
• Magnetic exchange fields and domain wall superconductivity at an all-oxide superconductor / ferromagnet insulator interface
• Local tunneling spectroscopy of the electron-doped cuprate Sm1.85Ce0.15CuO4
• Anomalous Enhancement of the Superconducting Transition Temperature in Electron-Doped Cuprate Heterostructures
• Destruction of Neel order and appearance of superconductivity in electron-doped cuprates by oxygen annealing process
• On the resistivity at low temperatures in electron-doped cuprate superconductors
• Anomalies of upper critical field in the spinel superconductor LiTi${}_2$O${}_{4-\delta }$
• Vacancy-induced suppression of CDW order and its impact on magnetic order in kagome antiferromagnet FeGe
• Superconductivity induced by structural reorganization in the electron-doped cuprate Nd${}_{2-x}$Ce${}_x$CuO${}_4$
• Quantum oscillations suggest hidden quantum phase transition in the cuprate superconductor Pr${}_2$CuO${}_{4\pm \delta }$
• Thickness-induced insufficient oxygen reduction in La(2-x)CexCuO4 thin films
• Effect of high oxygen pressure annealing on superconducting Nd1.85Ce0.15CuO4 thin films by pulsed laser deposition from Cu-enriched targets
• Post-growth annealing effects on charge and spin excitations in Nd${}_{2-x}$Ce${}_x$CuO${}_4$
• Normal State Gap in Parent Cuprate Pr2CuO4+/-δ
• Magnetism behavior of $T^{\prime }$-type Eu${}_2$CuO${}_4$ revealed by muon spin rotation/relaxation measurements
• Evolution of electronic states in n-type copper oxide superconductor via electric double layer gating
• Freestanding single-crystal superconducting electron-doped cuprate membrane
• Non-linear Hall resistivity in overdoped Pr${}_{1.82}$Ce${}_{0.18}$CuO${}_{4+\delta }$ electron-doped cuprate