Interface Delocalization Transition in Type-I Superconductors
J. O. Indekeu, J. M. J. van Leeuwen
DOI 10.1103/PhysRevLett.75.1618 · Physical Review Letters
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Abstract
Within the Ginzburg-Landau theory, which is known to be quantitatively correct for classical superconductors, it is shown that a type-I superconductor with enhanced order parameter |ψ|2 at the surface displays an interface delocalization or “wetting” transition. Surprisingly, the order of the transition is controlled by a bulk material constant, the Ginzburg-Landau parameter κ. First-order wetting is predicted for 0≤κ<0.374 and critical wetting for 0.374<κ<1/2. Superconductors are likely to be an ideal test case for experimental observation of critical wetting.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sn Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| In Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Re Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Tl 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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