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The current–voltage characteristic in an ultrasmall junction

✍ Scribed by D. Takai; K. Ohta

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
79 KB
Volume
22
Category
Article
ISSN
0749-6036

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✦ Synopsis

The current-voltage characteristics of ultrasmall superconductor-insulator-normal metal (S-I-N), and a superconductor-insulator-superconductor (S-I-S) junctions are computed in the presence of a dissipative transmission line. The amplitude of the discontinuous jump at the energy gap of a single-particle current is greatly influenced by the size of the capacitance and the impedance of the external transmission line in the small junction. The results agree with Ambegaokar-Baratoff in the limit of vanishing impedance of a transmission line or large junction capacitance.

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