Pair weakening in electronically mediated superconductors

Chien-Hua Pao; N. E. Bickers

doi:10.1103/PhysRevB.44.10270

← Back to search

Pair weakening in electronically mediated superconductors

Chien-Hua Pao, N. E. Bickers

DOI 10.1103/PhysRevB.44.10270 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

When superconductivity results from the exchange of electronic excitations (spin or charge fluctuations), the development of a gap is expected to modify the pairing potential below Tc. One aspect of this feedback phenomenon, pair weakening, is investigated within a modified BCS treatment of d-wave superconductivity in the Hubbard model. It is argued that pair weakening and pair breaking (inelastic scattering) are likely to have comparable effects on properties like the gap ratio 2Δk(0)/kBTc.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
CeCu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
UBe3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown