Tunneling estimates of paramagnon suppression of superconductivity in transition metals

D. M. Burnell, John Zasadzinski, R. J. Noer, E. L. Wolf, G. B. Arnold

Research output: Contribution to journalArticle

Abstract

New experimental estimates are given of the separate electron-phonon (λph) and paramagnon (λS) contributions to mass renormalization for the transition metals Nb and V, from recent tunneling results. Our analysis, which is the first of its kind, is based on the recent demonstration of Daams, Mitrovic, and Carbotte of a simple rescaling of the Eliashberg equations using an effective coupling parameter λph (1+λS). The results provide a consistent picture of superconductivity in these transition elements from tunneling, in substantially improved agreement with other measurements. We conclude that spin fluctuations reduce the electron-phonon Tc values in Nb and V by 25% and 45%, respectively.

Original languageEnglish (US)
Pages (from-to)637-641
Number of pages5
JournalSolid State Communications
Volume41
Issue number9
DOIs
StatePublished - 1982

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Superconductivity
Transition metals
Transition Elements
superconductivity
transition metals
retarding
Spin fluctuations
Electrons
estimates
electrons
Demonstrations

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Tunneling estimates of paramagnon suppression of superconductivity in transition metals. / Burnell, D. M.; Zasadzinski, John; Noer, R. J.; Wolf, E. L.; Arnold, G. B.

In: Solid State Communications, Vol. 41, No. 9, 1982, p. 637-641.

Research output: Contribution to journalArticle

Burnell, D. M. ; Zasadzinski, John ; Noer, R. J. ; Wolf, E. L. ; Arnold, G. B. / Tunneling estimates of paramagnon suppression of superconductivity in transition metals. In: Solid State Communications. 1982 ; Vol. 41, No. 9. pp. 637-641.
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