Resonant States of a Momentum-Dependent Impurity Potential in a d-Wave Superconductor |
| P. Pisarski and G. Harań
Institute of Physics, Politechnika Wrocławska, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland |
| Full Text PDF |
| Received: 6 11 2007; |
| Nonmagnetic impurity on-site potential leads to the resonant states in a d-wave superconductor for the unitary scattering limit. We extend the above study to include a momentum dependence of the impurity potential and discuss the existence and number of resonant states for a tetragonal anisotropy of the scattering potential. |
| DOI: 10.12693/APhysPolA.114.153 PACS numbers: 74.20.Rp, 74.62.Dh, 74.72.-h |