Solutions of the magnetic Eliashberg equations for heavy-fermion superconductors

M. R. Norman

doi:10.1103/PhysRevB.37.4987

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Solutions of the magnetic Eliashberg equations for heavy-fermion superconductors

M. R. Norman

DOI 10.1103/PhysRevB.37.4987 · Physical Review B

T1

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Abstract

Recently, a method was put forth to evaluate quantitatively gap functions and transition temperatures for heavy-fermion superconductors. This formalism involves a modification of the Eliashberg spin-fluctuation equations of Berk and Schrieffer, with the modification being the replacement of the Lindhard susceptibility by the experimentally derived susceptibility. In the case of UPt3, it was shown that both the mass renormalization and superconducting-transition temperature could be explained by this method. The purpose here is to discuss the results of the solutions to these equations in depth for the cases of UPt3 and UBe13, as well as some preliminary thoughts on other heavy-fermion metals.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
UBe13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown