Zero-energy states in s-wave/normal-metal/d-wave superconductor junctions
R. Žikić, L. Dobrosavljević-Grujić, Z. Radović
DOI 10.1103/PhysRevB.64.012501 · Physical Review B
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Abstract
Andreev zero energy states (ZES) in clean s-wave/normal-metal/d-wave superconductor (S/N/D) junctions with transparent interfaces are studied theoretically. It is found that depending on the misorientation of the D electrode and on the barrier acceptance angle, ZES appears when the macroscopic phase difference at the junction is φ=0 or π. At high temperature, ZES can appear in the equilibrium state of the junction, in contrast to the S/N/S case, where ZES is formed only for φ=π, outside the equilibrium. The splitting of the zero bias conductance peak at low temperature is explained as a consequence of the time symmetry reversal breaking.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O6.6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| 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 |
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