Superfluid Response in Electron-Doped Cuprate Superconductors
H. G. Luo, T. Xiang
DOI 10.1103/PhysRevLett.94.027001 · Physical Review Letters
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Abstract
We propose a weakly coupled two-band model with dx2−y2 pairing symmetry to account for the anomalous temperature dependence of superfluid density ρs in electron-doped cuprate superconductors. This model gives a unified explanation to the presence of an upward curvature in ρs near Tc and a weak temperature dependence of ρs in low temperatures. Our work resolves a discrepancy in the interpretation of different experimental measurements and suggests that the pairing in electron-doped cuprates has predominately dx2−y2 symmetry in the whole doping range.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nd2-xCexCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| MgB2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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