Vertex corrections in nearly ferroelectric superconductors

D. Fay; M. Weger

doi:10.1103/PhysRevB.62.15208

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Vertex corrections in nearly ferroelectric superconductors

D. Fay, M. Weger

DOI 10.1103/PhysRevB.62.15208 · Physical Review B

T1

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Abstract

We investigate the effect of an incipient ferrolectric transition on vertex corrections to the superconducting pairing interaction. The vertex corrections for small momentum transfers are largely independent of the type of boson responsible for the superconducting transition. The electron-phonon interaction is found to be enhanced by a nearly ferroelectric medium. We discuss application to the cuprate superconductors.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La2-xSrxCuO4 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