Electromagnetic interactions between fluctuations near the superconducting phase transition
Nigel Goldenfeld, C. J. Pethick
DOI 10.1103/PhysRevB.39.9601 · Physical Review B
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Abstract
We calculate the amplitude ratio C+/C− for specific-heat fluctuations near the superconducting-phase transition, taking into account the lowest-order fluctuations about mean-field theory. For a U(1) Ginzburg-Landau theory, minimally coupled to electromagnetism in d dimensions, C+/C−=2/(2d/2+κ−d), where κ is the Ginzburg-Landau parameter. We discuss how this result arises from the microscopic theory of superconductivity.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ 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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