Nonlocal vortex motion in mesoscopic amorphous Nb0.7Ge0.3 structures

Helzel, A. and Kokanović, Ivan and Babić, Dinko and Litvin, L. V. and Rohlfing, F. and Otto, F. and Surgers, C. and Strunk, C. (2006) Nonlocal vortex motion in mesoscopic amorphous Nb0.7Ge0.3 structures. Physical Review B, 74 (22). pp. 220510-4. ISSN 1098-0121

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Abstract

We study nonlocal vortex transport in mesoscopic amorphous Nb0.7Ge0.3 samples. A dc current I is passed through a wire connected via a perpendicular channel, of a length L=2– 5 µ ; ; ; m, with a pair of voltage probes where a nonlocal response VnlI is measured. The maximum of Rnl=Vnl/I for a given temperature occurs at an L-independent magnetic field and is proportional to 1/L. The results are interpreted in terms of the dissipative vortex motion along the channel driven by a remote current and can be understood in terms of a simple model.

Item Type: Article
Keywords: low-Tc films, mesoscopic and nanoscale systems, Vortex lattices, flux pinning, flux creep
Date: December 2006
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2006) 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 11:07
Last Modified: 03 Jun 2014 11:07
URI: http://digre.pmf.unizg.hr/id/eprint/1673

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