Impact of oxygen annealing on the heat capacity and magnetic resonance of superconducting Pr0.88LaCe0.12CuO4−δ
Shiliang Li, Songxue Chi, Jun Zhao, H.-H. Wen, M. B. Stone, J. W. Lynn, Pengcheng Dai
DOI 10.1103/PhysRevB.78.014520 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We use thermodynamic and neutron-scattering measurements to study the effect of oxygen annealing on the superconductivity and magnetism in Pr0.88LaCe0.12CuO4−δ. Although the transition temperature Tc measured by susceptibility and superconducting coherence length increases smoothly with gradual oxygen removal from the annealing process, bulk superconductivity, marked by a specific-heat anomaly at Tc and the presence of a neutron magnetic resonance, only appears abruptly when Tc is close to the largest value. These results suggest that the effect of oxygen annealing must first be determined in order to establish a Ce doping dependence of antiferromagnetism and superconductivity phase diagram for electron-doped copper oxides.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pr0.88LaCe0.12CuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 27 | Pressure not reported | unknown |
| Pr0.88LaCe0.12CuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 27 | Pressure not reported | midpoint |
| Pr0.88LaCe0.12CuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 24 | Pressure not reported | midpoint |
| Pr0.88LaCe0.12CuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 22 | Pressure not reported | midpoint |
| Pr0.88LaCe0.12CuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 21 | Pressure not reported | unknown |
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Nd2-xCexCuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Pr2-xCexCuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Extended Superconducting Concentration Range Observed in Pr2−xCexCuO4−δ
similarity 0.97Matthias Brinkmann et al.
Source status unknown — claims are unverified
Annealing effect on the electron-doped superconductor Pr0.88LaCe0.12CuO4±δ
similarity 0.96Yong-Lei Wang et al.
Source status unknown — claims are unverified
Doping of Ce in T−La2CuO4: Rigorous test for electron-hole symmetry for high-Tc superconductivity
similarity 0.96A. Tsukada et al.
Source status unknown — claims are unverified
Muon spin relaxation study of the Cu spin dynamics in electron-doped high-Tc superconductor Pr0.86LaCe0.14Cu1−yZnyO4
similarity 0.96Risdiana et al.
Source status unknown — claims are unverified
Quantum structural parameters for electron- and hole-carrying copper oxide superconductors
similarity 0.96Kalpana Katti & Subhash H. Risbud
Source status unknown — claims are unverified
Effects of strong magnetic fields on pairing fluctuations in high-temperature superconductors
similarity 0.95M. Eschrig et al.
Source status unknown — claims are unverified