Nonlinear current response of one- and two-band superconductors
E. J. Nicol, J. P. Carbotte, D. J. Scalapino
DOI 10.1103/PhysRevB.73.014521 · Physical Review B
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Abstract
We have calculated the nonlinear current of a number of single band s-wave electron-phonon superconductors. Among issues considered were those of dimensionality, strong electron-phonon coupling, impurities, and comparison with BCS. For the case of two bands, particular attention is paid to features resulting from the two energy gap scales, the Fermi velocity anisotropy, the integration effects of the off-diagonal electron-phonon interaction, as well as interband and intraband impurities. For the specific case of MgB2, we present results based on the known microscopic parameters of band theory.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| MgB2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Al 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 |
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