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 journalArticlepeer-review


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
Issue number9
StatePublished - Mar 1982

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry


Dive into the research topics of 'Tunneling estimates of paramagnon suppression of superconductivity in transition metals'. Together they form a unique fingerprint.

Cite this