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Equipartition of Current in Parallel Conductors on Cooling Through the Superconducting Transition

Sarangi, S and Chockalingam, SP and Mavinkurve, Raghav G and Bhat, SV and Kumar, N (2005) Equipartition of Current in Parallel Conductors on Cooling Through the Superconducting Transition. [Preprint]

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Abstract

Our experiments show that for two or more pieces of different lengths of a wire combined in parallel and connected to a dc source, the current ratio evolves towards unity as the combination is cooled to the superconducting transition temperature Tc, and remains pinned at that value below it. This equipartition of the total current is a surprise, but can be understood in terms of the progressive depression of superconducting fluctuations in the transition region due to the transport current. This equipartition without fine tuning is derived analytically from the Onsager-Rayleigh least dissipation principle governing the self organization (redistribution) of the current.

Item Type: Preprint
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 18 Jan 2006
Last Modified: 19 Sep 2010 04:22
URI: http://eprints.iisc.ernet.in/id/eprint/4955

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