INTERNAL RESONANCES IN PERIODICALLY MODULATED LONG JOSEPHSON-JUNCTIONS

Citation
Bh. Larsen et al., INTERNAL RESONANCES IN PERIODICALLY MODULATED LONG JOSEPHSON-JUNCTIONS, IEEE transactions on applied superconductivity, 5(2), 1995, pp. 2947-2950
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
ISSN journal
10518223
Volume
5
Issue
2
Year of publication
1995
Part
3
Pages
2947 - 2950
Database
ISI
SICI code
1051-8223(1995)5:2<2947:IRIPML>2.0.ZU;2-3
Abstract
Current-voltage (I - V) characteristics of long Josephson junctions wi th a periodic lattice of localized inhomogeneities are studied. The in teraction between the moving fluxons and the inhomogeneities causes re sonant steps in the IV-curve. Some of these steps are due to a synchro nization to resonant Fiske modes in the sub-junctions formed between t he inhomogeities. The voltage positions of the resonant steps oscillat e as function of the applied magnetic field with a period correspondin g to the inclusion of one magnetic flux quantum, Phi(0) = h/2e, per su b-junction. qualitative explanation that takes into account the intera ction between the resonance in the sub-junction and the magnetic flux density waves excited in the whole junction is given.