Extended impurity potential in a dx2−y2 superconductor
A. P. Kampf, T. P. Devereaux
DOI 10.1103/PhysRevB.56.2360 · Physical Review B
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Abstract
We investigate the role of a finite potential range of a nonmagnetic impurity for the local density of states in a dx2−y2 superconductor. Impurity-induced subgap resonances are modified by the appearance of further scattering channels beyond the s-wave scattering limit. The structure of the local density of states (DOS) in the vicinity of the impurity is significantly enhanced and therefore improves the possibility for observing the characteristic anisotropic spatial modulation of the local DOS in a dx2−y2 superconductor by scanning tunneling microscopy.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-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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