Proximity effect of thin films on superconducting substrates
Hae Kyung Im, E. A. Jagla, C. A. Balseiro
DOI 10.1103/PhysRevB.50.10117 · Physical Review B
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Abstract
We calculate the local density of states for a thin metallic film deposited on a superconducting substrate. We use a tight-binding model with a BCS interaction in the substrate. We show that for energies lower than the superconducting gap of the substrate, the local density of states in the normal metal film presents a structure due to the proximity effect. In very thin normal films, we obtain a structure that was missed in previous calculations. We interpret recent experiments in Au-NbSe2 systems in terms of this structure.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Au Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| NbSe2 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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