Subharmonic gap structure in the characteristics of YBa 2Cu 3O 7 - x microbridges
Abstract
The subharmonic gap structures corresponding to large, 2 Δ1 = 48 meV, and small, 2 Δ2 = 10.3 meV, components of the energy gap were observed in the first derivatives of the current-voltage characteristics of YBa 2Cu 3O 7 - x epitaxial thin film microbridges. The appearance of the subharmonic gap structures is attributed to Andreev reflection.
- Publication:
-
Physics Letters A
- Pub Date:
- February 1996
- DOI:
- 10.1016/0375-9601(96)00108-9
- Bibcode:
- 1996PhLA..213..303P
- Keywords:
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- WEAK LINKS;
- SUBHARMONIC GAP STRUCTURE;
- ANDREEV REFLECTION