Effect of vortex-core size on the flux lattice in a mesoscopic superconducting strip

Kokanović, Ivan and Helzel, A. and Babić, Dinko and Surgers, C. and Strunk, C. (2008) Effect of vortex-core size on the flux lattice in a mesoscopic superconducting strip. Physical Review B, 77 (17). pp. 172504-4. ISSN 1098-0121

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Abstract

We present an experimental study of the vortex-motion dissipation in a mesoscopic amorphous (α-)Nb0.7Ge0.3 strip, with emphasis on the results for 3–8 vortex rows parallel to the long strip axis. In the isothermal voltage vs magnetic field traces, at a constant current, we observe plateaus superimposed onto a monotonic background. The plateaus appear because finite vortex-core size influences the accommodation of the flux lattice into the strip. This conclusion is drawn from a quantitative analysis, which is free of adjustable parameters, of the magnetic fields that edge the plateaus.

Item Type: Article
Keywords: low-Tc films, mesoscopic and nanoscale systems, Vortex lattices, flux pinning, flux creep
Date: May 2008
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2008) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119-1191458-1008
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 03 Jun 2014 11:39
Last Modified: 03 Jun 2014 11:39
URI: http://digre.pmf.unizg.hr/id/eprint/1959

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