Superconducting energy gap in YNi2B2C

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

Research output: Contribution to journalArticle

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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 - 1994
Externally publishedYes

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Energy gap
BCS theory
Electron tunneling
Tunnel junctions
tunnel junctions
predictions

ASJC Scopus subject areas

  • Condensed Matter Physics

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Superconducting energy gap in YNi2B2C. / Ekino, T.; Fujii, H.; Kosugi, M.; Zenitani, Y.; Akimitsu, Jun.

In: Physica C: Superconductivity and its Applications, Vol. 235-240, No. PART 4, 1994, p. 2529-2530.

Research output: Contribution to journalArticle

Ekino, T, Fujii, H, Kosugi, M, Zenitani, Y & Akimitsu, J 1994, 'Superconducting energy gap in YNi2B2C', Physica C: Superconductivity and its Applications, vol. 235-240, no. PART 4, pp. 2529-2530. https://doi.org/10.1016/0921-4534(94)92485-6
Ekino, T. ; Fujii, H. ; Kosugi, M. ; Zenitani, Y. ; Akimitsu, Jun. / Superconducting energy gap in YNi2B2C. In: Physica C: Superconductivity and its Applications. 1994 ; Vol. 235-240, No. PART 4. pp. 2529-2530.
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