Abstract
We have experimentally investigated electron transport in double-barrier Nb/Al/AlO(x)/Al/AlO(x)/Nb devices. At low temperatures, the devices reveal a novel magnetic-field-sensitive subgap structure in the current-voltage characteristics, which is interpreted as a manifestation of Andreev bound states. A correlation between phase-coherent and nonequilibrium properties is suggested. (C) 2000 Elsevier Science B.V.
Original language | English (US) |
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Pages (from-to) | 238-244 |
Number of pages | 7 |
Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
Volume | 269 |
Issue number | 4 |
DOIs | |
State | Published - May 8 2000 |
Keywords
- Andreev bound states
- Andreev reflection
- Josephson effect
- Superconductivity
- Tunneling
ASJC Scopus subject areas
- Physics and Astronomy(all)