Influence of the current-phase relation on the critical-current-applied-magnetic-flux dependence in parallel-connected Josephson junctions
1976; American Institute of Physics; Volume: 47; Issue: 6 Linguagem: Inglês
10.1063/1.322986
ISSN1520-8850
Autores Tópico(s)Organic and Molecular Conductors Research
ResumoThe form of the current-phase relations for the Josephson junctions is shown to have a significant influence on the relation Ic(ϑa) between critical current and applied flux for two junctions connected in parallel in a superconducting circuit. The observed one-flux-quantum periodicity and inversion symmetry of the Ic(ϑa) relation are shown to result from the fact that the current-phase, i-φ, relations of the junctions satisfy i (φ+2mπ) =i (φ) and i (−φ) =−i (φ), respectively. It is also shown that if the current-phase relations for the two junctions are different, an asymmetry appears in the Ic(ϑa).
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