Magnetic Interference Patterns Research Articles

Magnetic Interference Pattern in a Clean s-Wave-Normal Metal-d-Wave Superconductor Junction

physica status solidi (b)Volume 202, Issue 2 p. R9-R10 Research Letter Magnetic Interference Pattern in a Clean s-Wave–Normal Metal–d-Wave Superconductor Junction A. M. Zagoskin, A. M. Zagoskin zagoskin@physics.ubc.ca Department of Physics and Astronomy, The University of British Columbia, 6224 Agricultural Rd., Vancouver, B.C., V6T 1Z1, CanadaSearch for more papers by this author A. M. Zagoskin, A. M. Zagoskin zagoskin@physics.ubc.ca Department of Physics and Astronomy, The University of British Columbia, 6224 Agricultural Rd., Vancouver, B.C., V6T 1Z1, CanadaSearch for more papers by this author First published: 16 November 2001 https://doi.org/10.1002/1521-3951(199708)202:2<R9::AID-PSSB99999>3.0.CO;2-OCitations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume202, Issue2August 1997Pages R9-R10 RelatedInformation

Two-dimensional imaging of the current-density distribution in superconducting tunnel junctions

Using a scanning electron microscope equipped with a low-temperature stage, we show that under the electron irradiation a superconducting tunnel junction can operate regularly. The electron beam generates a voltage signal across the current-biased junction. By recording the small voltage change synchronously with the coordinate irradiated by the beam, a two-dimensional “voltage image” of the density distribution of the junction tunneling current can be obtained. The distributions are in agreement with the magnetic interference patterns of the dc-Josephson currents in the junctions.

Josephson junction interference grating

The maximum current through multiple Josephson structures as a function of applied magnetic field is presented. Particular emphasis is placed on the Josephson penetration depth effects and geometrical considerations. The symmetrical and asymmetrical current feed two-, three-, four-, and five-junction gratings are analyzed and discussed. The Josephson penetration depth is shown to control the amplitude of the interference and diffraction patterns of the interference grating. In addition the interior-junction-length/interference-loop-area product is shown to control the operating mode of the interference grating. The dependence of the magnetic field sensitivity and interference pattern amplitude on the number of junctions is discussed.