NDLI: Energy storage and subharmonic oscillations in Josephson junctions

Content Provider	IEEE Xplore Digital Library
Author	Dempsey, D. Levinsen, M. Ulrich, B.
Copyright Year	1965
Abstract	The energy stored in the magnetic and electric field near a superconducting point contact is typically the same magnitude as the coupling energy which produces the Josephson effect in the weakly coupled superconductors. These energies are usually of order one electron volt. One consequence of energy storage in both the electric and magnetic field is that the junction can oscillate at a fundamental frequency ω=2eV/hn, where n is an integer. The dynamics of these subharmonic oscillations have been studied for a model in which the magnetic and electric energies are represented as being stored in an inductance and a capacitance respectively. The model was studied numerically for various biasing conditions, and the behavior compared to experimental data. A simple analytic approximation was developed that gives physical insight into the mechanism that creates the subharmonic oscillations. By use of an electrical analog model, we demonstrated that these subharmonic oscillations can phase lock with an externally applied signal.
Sponsorship	IEEE Magnetics Society
Starting Page	811
Ending Page	814
Page Count	4
File Size	486259
File Format	PDF
ISSN	00189464
Volume Number	11
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1975-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Energy storage Josephson junctions Superconducting magnetic energy storage Couplings Josephson effect Superconductivity Electrons Magnetic fields Frequency Inductance
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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