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Shapiro steps in the fluxon motion in superconductors

Boris Ya. Shapiro, Moshe Gitterman, Ido Dayan, George H. Weiss

DOI 10.1103/PhysRevB.46.8416 · Physical Review B

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Abstract

A method for studying the fluxon motion in superconductors is suggested based on so-called Shapiro steps in the current-voltage characteristics. These are similar to ones that appear in Josephson junctions. A knowledge of the properties of Shapiro steps would provide important information on the properties of fluxons. An exact, nonperturbative calculation of the sizes of Shapiro steps is given for a periodic field having the form of a symmetric pulse.

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