Current-carrying states in Josephson junctions
Journal Article
·
· Physical Review, B: Condensed Matter; (USA)
- Department of Physics, University of Tokyo, Tokyo 113, Japan (JP)
A unified treatment of clean Josephson junctions---both tunnel junctions and weak links---is developed for the static case. The quasiparticle local density of states in Josephson junctions is calculated, and it is found that the energy spectrum depends strongly on the phase difference between the two superconductors. In the case of tunnel junctions, it is predicted that bound states which are localized around the tunnel barrier appear in the energy gap. The Josephson current flows via the bound states. The possibility to observe such current-carrying states by scanning tunneling spectroscopy is discussed.
- OSTI ID:
- 5792914
- Journal Information:
- Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 43:13; ISSN 0163-1829; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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