Tunneling measurements of the zero-bias conductance peak and the Bi-Sr-Ca-Cu-O thin-film energy gap
Abstract
We have examined the zero-bias conductance peak that is often found in high-temperature-superconductor tunnel-junction spectra. We have also measured the Bi-Sr-Ca-Cu-O thin-film energy gap. The zero-bias conductance peak can be explained in terms of quasiparticle tunneling, phase diffusion, and a supercurrent. The implications of this model are discussed.
- Publication:
-
Physical Review Letters
- Pub Date:
- January 1991
- DOI:
- 10.1103/PhysRevLett.66.516
- Bibcode:
- 1991PhRvL..66..516W
- Keywords:
-
- Bismuth Oxides;
- Electron Tunneling;
- Energy Gaps (Solid State);
- High Temperature Superconductors;
- Mixed Oxides;
- Superconducting Films;
- Bias;
- Calcium Oxides;
- Copper Oxides;
- Strontium Compounds;
- Thin Films;
- Solid-State Physics;
- 74.50.+r;
- 74.40.+k;
- 74.75.+t;
- Tunneling phenomena;
- point contacts weak links Josephson effects;
- Fluctuations