Impurity bound states and symmetry of the superconducting order parameter in Sr2RuO4
Kazumi Maki, Stephan Haas
DOI 10.1103/PhysRevB.62.R11969 · Physical Review B
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Abstract
Recent experiments on Sr2RuO4 have indicated the presence of linear nodes in the superconducting order parameter. Among the possible spin triplet states, two-dimensional (2D) p-wave superconductivity with Eu symmetry appears to be inconsistent with the experiments, whereas the 2D f-wave order parameter with B1g×Eu symmetry turns out to be a more likely candidate. Here it is shown how the quasiparticle bound-state wave functions around a single impurity provide a clear signature of the symmetry of the underlying superconducting order parameter.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.5 | Pressure not reported | unknown |
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