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 language | English |
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Pages (from-to) | 23-25 |
Number of pages | 3 |
Journal | Physica B: Condensed Matter |
Volume | 328 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - Apr 2003 |
Externally published | Yes |
Event | T2PAM - 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