Geometrical surface pinning of vortices in superconducting films

AI Kosse, YE Kuzovlev, GG Levchenko, YV Medvedev, AY Prokhorov, VA Khokhlov, Pavlo Mikheenko

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A model is proposed for vortex pinning in a superconducting film with a rough surface. The model relates the critical current to the steepness of the surface relief and, at a high vortex concentration, to the distance between neighboring steepness maxima on the paths of vortex motion. The dependence of the critical current density on the thickness of a high-T-c superconducting film is measured in a weak magnetic field. Its behavior can be explained by the pinning at the stepped surface relief. (C) 2003 MAIK "Nauka/Interperiodica".
Original languageEnglish
Pages (from-to)379-383
Number of pages5
JournalJournal of Experimental and Theoretical Physics Letters
Volume78
DOIs
Publication statusPublished - 1 Sep 2003

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