University of Sussex
Browse

File(s) not publicly available

Opposed (hammerhead) Bifurcations in the Resonant Lineshape of a Strongly Driven SQUID Ring - Tank Circuit System

journal contribution
posted on 2023-06-08, 05:59 authored by R Whiteman, J Diggins, V Schollmann, T D Clark, Robert Prance, H Prance, J F Ralph
In this paper we describe very unusual paired bifurcations which can appear in the resonance curve of a coupled SQUID ring-radio frequency (rf) tank circuit system when the rf flux at the ring is comparable to Fo (= h/2e). We demonstrate that the position of these bistabilities is controlled by the static magnetic flux Fxstat applied to the ring, with simple bistable regions being observed on the lower or upper side of the resonance when (for n integer) Fxstat is close to nFo or (n + 1/2) Fo, respectively. More interestingly, we show that for values of Fx close to (n ± 1/4) Fo this resonance exhibits bistability on both its lower and upper sides. We discuss this very unusual phenomenon in terms of the non-linear equation of motion for the coupled system.

History

Publication status

  • Published

Journal

Physics Letters A

ISSN

03759601

Publisher

Physics Letters A

Issue

3

Volume

234

Page range

205-212

ISBN

0375-9601

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

Usage metrics

    University of Sussex (Publications)

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC