Physics – Condensed Matter – Superconductivity
Scientific paper
2005-10-05
J.Phys.:Condens. Matter, vol. 18 (2006) L143-L147
Physics
Condensed Matter
Superconductivity
Revised version of J.Phys. Condens.Matter; vol. 18(2006) L143-L147 14 pages including 3 figures; provided an explanation in te
Scientific paper
10.1088/0953-8984/18/1/011
Our experiments show that for two or more pieces of a wire, of different lengths in general, 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 re-distribution of the total current towards equipartition without external fine tuning is a surprise. It can be physically understood in terms of a mechanism that involves the flux-flow resistance associated with the transport current in a wire of type-II superconducting material. It is the fact that the flux-flow resistance increases with current that drives the current division towards equipartition.
Bhat S. V.
Chockalingam Subbaiah P.
Kumar Nirman
Mavinkurve Raghav G.
Sarangi Sash
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