Vertex correction to the Eliashberg equation for the superconducting critical temperature
J. Cai, X. L. Lei, L. M. Xie
DOI 10.1103/PhysRevB.39.11618 · Physical Review B
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Abstract
The effects of the electron-phonon vertex correction, including high-order correction, on the superconducting transition temperature Tc are discussed. For an Einstein spectrum, a selfconsistent vertex solution is obtained which goes beyond the ladder approximation and satisfies the Ward identity. The numerical results show that the Tc change due to this vertex correction is significant at small coupling constant λ, but much smaller for large λ.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2-xBaxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La2-xSrxCuO4 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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