Edge states and determination of pairing symmetry in superconducting Sr2RuO4
K. Sengupta, Hyok-Jon Kwon, Victor M. Yakovenko
DOI 10.1103/PhysRevB.65.104504 · Physical Review B
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Abstract
We calculate the energy dispersion of the surface Andreev states and their contribution to tunneling conductance for the order parameters with horizontal and vertical lines of nodes proposed for superconducting Sr2RuO4. For vertical lines, we find double peaks in tunneling spectra reflecting the van Hove singularities in the density of surface states originating from the turning points in their energy dispersion. For horizontal lines, we find a single cusplike peak at zero bias, which agrees very well with the experimental data on tunneling in Sr2RuO4.
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. | — | Pressure not reported | unknown |
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