Tunneling spectroscopy of MgB2 and Li0.5(THF)yHfNCl

T. Ekino, T. Takasaki, T. Muranaka, H. Fujii, J. Akimitsu, S. Yamanaka

Research output: Contribution to journal › Conference article › peer-review

36 Citations (Scopus)

Abstract

Break-junction tunneling spectra have been measured on MgB2 and Li0.5(THF)yHfNCl to investigate the nature of the superconducting gap. The observed largest gap values at 4 K are 2Δ = 18-20 and 11-12meV for MgB2 (Tc = 39 K) and Li0.5(THF)yHfNCl (26 K), respectively. These values lead to the similar ratio 2Δ/kBTc = 5-6, which is extremely large in comparison with that of the conventional strong-coupling superconductors.

Original languageEnglish
Pages (from-to)23-25
Number of pages3
JournalPhysica B: Condensed Matter
Volume328
Issue number1-2
DOIs
Publication statusPublished - Apr 1 2003
Externally publishedYes
EventT2PAM - Higashi-Hiroshima, Japan
Duration: Aug 16 2002 → Aug 19 2002

Keywords

  • Break junction
  • Energy gap
  • Li(THF)HfNCl
  • MgB
  • Superconductivity
  • Tunneling

ASJC Scopus subject areas

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

Access to Document

Fingerprint Dive into the research topics of 'Tunneling spectroscopy of MgB<sub>2</sub> and Li<sub>0.5</sub>(THF)<sub>y</sub>HfNCl'. Together they form a unique fingerprint.

Cite this