Superconducting phonon structure in the transition from tunneling to contact regime
J. G. Rodrigo, N. Agraït, C. Sirvent, S. Vieira
DOI 10.1103/PhysRevB.50.7177 · Physical Review B
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Abstract
We study the variation of the phonon structure in the conductance curves of superconducting variable-barrier junctions formed using a scanning tunneling microscope. The observed vanishing of this structure as the tunneling barrier decreases is explained as a result of the mixing of electronic states in the Andreev reflection process, whose importance increases as the tunneling barrier decreases.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.2 | Pressure not reported | unknown |
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