Issue |
Europhys. Lett.
Volume 33, Number 1, January I 1996
|
|
---|---|---|
Page(s) | 41 - 46 | |
Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
DOI | https://doi.org/10.1209/epl/i1996-00301-2 | |
Published online | 01 September 2002 |
Coherent states in a multi-junction superconducting loop
1
Institut für Schicht-und Ionentechnik, Forschungszentrum GmbH
D-52425 Jülich, Germany
2
Institut für Festkörperphysik, Friedrich Schiller
Universität D-07743 Jena, Germany
Received:
6
June
1995
Accepted:
16
November
1995
The mutual coherent interaction of Josephson junctions
in a multi-junction superconducting loop (MSL)
in the limit of zero-loop inductance
is theoretically investigated.
For the loop containing 2M junctions
there are M coherent states
corresponding to different values of effective
flux in the loop.
The stability analysis using the method of Floquet exponents
shows the highest stability for the state with
.
In this state, the MSL behaves like an oscillating magnetic dipole.
The optimum stability is reached for the normalised
bias current
and the McCumber
parameter
.
PACS: 74.50.+r – Proximity effects, weak links, tunneling phenomena, and Josephson effects / 85.25.Dq – Superconducting quantum interference devices (SQUIDs) (including magnetometers, electromagnetic radiation sources and detectors, and computer logic and memory devices) / 84.30.Ng – Oscillators, pulse generators, and function generators
© EDP Sciences, 1996
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.