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- Title
Cooper-Pair Tunneling in Small Josephson Junction Arrays Under Radio-Frequency Irradiation.
- Authors
Kanyolo, Godwill Mbiti; Takeda, Kouichi; Mizugaki, Yoshinao; Kato, Takeo; Shimada, Hiroshi
- Abstract
The influence of radio-frequency microwaves on the Coulomb blockade characteristics in small Josephson junctions was studied using a one-dimensional array of ten small Al tunnel junctions in the frequency range from 1 to 1000 MHz. Coulomb blockade voltage ( V th ) is diminished with increasing microwave power ( V ac ), where the V th – V ac plots for varied frequencies fall on a single curve. We observed and theoretically analyzed a magnetic field dependent renormalization of the applied microwave power, in addition to a magnetic field independent renormalization effect explained using an effective circuit approach of the array. Due to its high sensitivity to microwave power, the array is well-suited for on-chip detection applications in low-temperature environments.
- Subjects
JOSEPHSON junctions; COULOMB blockade; TUNNEL design &; construction; MAGNETIC fields; IRRADIATION
- Publication
Journal of Low Temperature Physics, 2020, Vol 201, Issue 3/4, p269
- ISSN
0022-2291
- Publication type
Article
- DOI
10.1007/s10909-020-02486-3