Superconducting energy gap in YNi2B2C

T. Ekino, H. Fujii, M. Kosugi, Y. Zenitani, J. Akimitsu

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The first tunneling measurements of the superconducting energy gap in YNi2B2C have been carried out. Observed energy gap value is typically 2Δp-p = 5.3±0.1 meV from the peak-to-peak amplitude in dI/dV, while 2Δ = 3.7±0.1 meV is determined from the standard analysis using the BCS theory. Since the Tc measured from the tunnel junction is 12 K, the ratio 2Δ/kBTc = 3.5±0.1 is obtained. This is in good agreement with the BCS prediction, indicating that the superconducting mechanism in this compound is a conventional type.

Original languageEnglish
Pages (from-to)2529-2530
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume235-240
Issue numberPART 4
DOIs
Publication statusPublished - Dec 1994
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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