✦ LIBER ✦

Observation of quantum susceptance in superconducting tunnel junctions

✍ Scribed by Qing Hu; C.A. Mears; P.L. Richards; F.L. Lloyd

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 366 KB
Volume: 165-166
Category: Article
ISSN: 0921-4526
DOI: 10.1016/s0921-4526(09)80379-7

No coin nor oath required. For personal study only.

✦ Synopsis

We have made the first direct measurement of the quantum susceptance which arises from the reactive part of quasiparticle tunneling in a superconductor-insulator-superconductor (SIS) junction. The resonant frequency of a resonator which contains an SIS junction depends on the dc bias due to the bias dependence of the quantum susceptance. The observed 19% shift of the resonant frequency, from 73 GHz to 87 GHz, is in excellent agreement with Werthamer-Tucker theory.

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