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IEICE TRANSACTIONS on Electronics

Estimation of Nb Junction Temperature Raised Due to Thermal Heat from Bias Resistor

Keisuke KUROIWA, Masaki KADOWAKI, Masataka MORIYA, Hiroshi SHIMADA, Yoshinao MIZUGAKI

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Summary :

Superconducting integrated circuits should be operated at low temperature below a half of their critical temperatures. Thermal heat from a bias resistor could rise the temperature in Josephson junctions, and would reduce their critical currents. In this study, we estimate the temperature in a Josephson junction heated by a bias resistor at the bath temperature of 4.2 K, and introduce a parameter β that connects the thermal heat from a bias resistor and the temperature elevation of a Josephson junction. By using β, the temperature in the Josephson junction can be estimated as functions of the current through the resistor.

Publication
IEICE TRANSACTIONS on Electronics Vol.E95-C No.3 pp.355-359
Publication Date
2012/03/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E95.C.355
Type of Manuscript
Special Section PAPER (Special Section on Josephson Junctions – Past 50 years and Future –)
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