Abstract
We report the first tunneling measurements made on the new high-transition-temperature perovskite superconductors. These were obtained using an ultrahigh-vacuum low-temperature scanning-tunneling microscope. The superconducting gap of a La1.85Sr0.15CuO4-y sample is 123 mV, and the onset Tc is 40 K, from which 2/kBTc=72. The possibility that this surprisingly high ratio may be due to a mechanism other than superconductivity is discussed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 7220-7223 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 35 |
| Issue number | 13 |
| DOIs | |
| State | Published - 1987 |
| Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics
Fingerprint
Dive into the research topics of 'Measurements of the superconducting gap of La-Sr-Cu-O with a scanning-tunneling microscope'. Together they form a unique fingerprint.Cite this
- APA
- Standard
- Harvard
- Vancouver
- Author
- BIBTEX
- RIS