Abstract
Tunneling spectroscopy measurements have been performed on single crystals B1-Sr-Ca-CuO, using the natural surface oxides as the tunnel barrier. The energy gap 2Δ was 58meV at 4.2K and crystals give a sharp single transition at Te=90K. Large values of 2Δ/kBTc in 2212 phase are obtained.
Original language | English (US) |
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Pages (from-to) | 225-230 |
Number of pages | 6 |
Journal | Ferroelectrics |
Volume | 128 |
Issue number | 1 |
DOIs | |
State | Published - Apr 1992 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics