Distinction between the normal-state gap and superconducting gap of electron-doped cuprates
L. Shan, Y. L. Wang, Y. Huang, S. L. Li, J. Zhao, Pengcheng Dai, H. H. Wen
DOI 10.1103/PhysRevB.78.014505 · 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 report the study of temperature- and magnetic-field dependent in-plane tunneling conductance on the electron-doped Nd1.85Ce0.15CuO4−y and Pr1−xLaCexCuO4−y single crystals. The previously reported normal state gap (NSG) Δps and superconducting gap Δsc were observed simultaneously in superconducting state. Combined with an investigation on the evolution of low-energy spectral weight with temperature, our data present evidence for electron-doped cuprates that Δps and Δsc are most possibly two different energy scales with very different field dependencies, and that superconductivity is condensed from the residual quasiparticle density of states (DOS) of the NSG state.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nd1.85Ce0.15CuO4-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 25 | Pressure not reported | unknown |
| Pr1-xLaCexCuO4-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 19 | Pressure not reported | unknown |
| Pr1-xLaCexCuO4-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 23 | Pressure not reported | unknown |
| Pr1-xLaCexCuO4-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 17 | Pressure not reported | unknown |
Similar papers
Tunneling study on the electron-doped superconductor Nd1.85Ce0.15CuO4−y
similarity 0.96T. Ekino & J. Akimitsu
Source status unknown — claims are unverified
Anomalous Transport Properties in Superconducting Nd1.85Ce0.15CuO4±δ
similarity 0.95Wu Jiang et al.
Source status unknown — claims are unverified
Doping dependence of normal- and superconducting-state transport properties of Nd2−xCexCuO4±y thin films
similarity 0.95F. Gollnik & M. Naito
Source status unknown — claims are unverified
Electronic Structure of Ce-Doped and -Undoped Nd2CuO4 Superconducting Thin Films Studied by Hard X-Ray Photoemission and Soft X-Ray Absorption Spectroscopy
similarity 0.94M. Horio et al.
Source status unknown — claims are unverified
Nearly isotropic s-wave gap in the bulk of the optimally electron-doped superconductor Nd1.85Ce0.15CuO4−y
similarity 0.94Guo-meng Zhao
Source status unknown — claims are unverified
Comparison of paramagnetic- and nonmagnetic-impurity effects on superconductivity in Nd1.85Ce0.15CuO4
similarity 0.94Jun Sugiyama et al.
Source status unknown — claims are unverified