Proximity electron tunneling spectroscopy. III. Electron-phonon coupling in the Nb-Zr system

E. L. Wolf, R. J. Noer, Gerald B. Arnold

Research output: Contribution to journalArticlepeer-review

Abstract

The technique of McMillan-Rowell tunneling spectroscopy, extended by a method of proximity junctions to poorly oxidizing materials, is applied to study electron-phonon coupling in Nb1-xZrxat x = 0.25, corresponding to the maximum Tcin the Nb-Zr alloy system. The resulting α2F(Ω) function provides λ = 1.3 for the alloy, and indicates that the primary benefit to superconductivity upon alloying arises from softening of the effective phonon spectrum.

Original languageEnglish (US)
Pages (from-to)419-440
Number of pages22
JournalJournal of Low Temperature Physics
Volume40
Issue number5-6
DOIs
StatePublished - Sep 1980

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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