Spin-resolved impurity resonance states in electron-doped cuprate superconductors
Bin Liu
DOI 10.1103/PhysRevB.79.172501 · Physical Review B
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Abstract
With the aim of understanding the nonmonotonic dx2−y2-wave gap, we analyze the local electronic structure near impurities in the electron-doped cuprate superconductors. We find that the local density of states near a nonmagnetic impurity in the scenario of dx2−y2-wave superconductivity with higher harmonics is qualitatively different from that obtained from the dx2−y2-wave superconductivity coexisting with antiferromagnetic spin-density wave order. We propose that spin-polarized scanning tunneling microscopy measurements can distinguish the two scenarios and shed light on the real physical origin of a nonmonotonic dx2−y2-wave gap.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nd1.85Ce0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Pr0.89LaCe0.11CuO4 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 |
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