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Title: Amplification of electromagnetic waves excited by a chain of propagating magnetic vortices in YBaCuO Josephson-junction arrays
Authors: Chesca, Boris
John, Daniel
Mellor, Christopher
Issue Date: 2014
Publisher: © IOP
Citation: CHESCA, B., JOHN, D. and MELLOR, C., 2014. Amplification of electromagnetic waves excited by a chain of propagating magnetic vortices in YBaCuO Josephson-junction arrays. Superconducting Science and Technology 27(8):085015-085015.
Abstract: Theory shows that when a soliton propagates in a discrete lattice it excites small-amplitude linear waves in its wake. In a dc current-biased Josephson-junction (JJ) array these manifest as electromagnetic (EM) waves excited by a (magnetic field induced) chain of propagating magnetic vortices. When the vortex velocity and the phase velocity of one of the excited EM waves match, phase-locking occurs. This results in the amplification of the EM radiation. We report the first observation of phase-locking-induced amplification of EM radiation at 77K and above in JJ arrays made of high temperature superconductors.
Description: This is an author-created, un-copyedited version of an article published in Superconducting Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/10.1088/0953-2048/27/8/085015
Version: Accepted for publication
DOI: 10.1088/0953-2048/27/8/085015
URI: https://dspace.lboro.ac.uk/2134/13920
Publisher Link: http://dx.doi.org/10.1088/0953-2048/27/8/085015
ISSN: 0031-9007
Appears in Collections:Published Articles (Physics)

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