Instabilities of the dc-squid

J. A. Ketoja, J. Kurkijarvi, R. K. Ritala

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


We have integrated numerically the dc-SQUID equations in a wide range of parameters. Instabilities in the coherent phase evolution of the junction s are found also in the absence of an external field and sometimes near parameter values allegedly used in magnetometers, for which they then have nontrivial consequences. The instabilities can be accounted for as arising from the Mathieu-Hill nature of the phase difference equation. At a number of unphysically high inductances we find chaotic motion of the phases.
Original languageEnglish
Title of host publicationProceedings of the 17th International Conference on Low Temperature Physics, LT-17
EditorsU. Eckern
PublisherNorth-Holland Publ Co
ISBN (Print)978-0-444-86910-4
Publication statusPublished - 1 Dec 1984
MoE publication typeA4 Article in a conference publication
Event17th International Conference on Low Temperature Physics, LT-17 - Karlsruhe, Germany
Duration: 15 Aug 198422 Aug 1984


Conference17th International Conference on Low Temperature Physics, LT-17
Abbreviated titleLT-17


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