Proximity electron tunneling spectroscopy. IV. Electron-phonon coupling and superconductivity of tantalum

E. L. Wolf, D. M. Burnell, Z. G. Khim, R. J. Noer

Research output: Contribution to journalArticle

Abstract

An extensive superconducting electron tunneling study of Ta, using both a proximity method and an optimized conventional spectroscopy, is reported. The results for Ta confirm the electron-phonon origin of superconductivity in this element, and provide slightly improved superconducting parameters: λ =0.73 and Μph* = 0.11. The results from the PET and optimized conventional methods are in substantial agreement, although the proximity method appears to provide somewhat better resolution of structure in the Eliashberg function α2F(E).

Original languageEnglish (US)
Pages (from-to)89-118
Number of pages30
JournalJournal of Low Temperature Physics
Volume44
Issue number1-2
DOIs
StatePublished - Jul 1 1981

ASJC Scopus subject areas

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

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