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Title: Crossover from normal (N) Ohmic subdivision to superconducting (S) equipartition of current in parallel conductors at the N-S transition: Theory
Authors: Kumar, N.
Issue Date: May-2007
Publisher: EDP Sciences / IOP / Società Italiana di Fisica
Citation: Europhysics Letters, 2009, Vol.78, 37001
Abstract: The recently observed (S. Sarangi et al., J. Phys. Condens. Matter, 18 (2006) L143) equipartition of current in parallel at and below the Normal-Superconducting (N-S) transition can be understood in terms of a Landau-Ginzburg order-parameter phenomenology. This complements the explanation proposed earlier (see Sarangi et al.) based on the flux-flow resistance providing a nonlinear negative current feedback towards equipartition when the transition is approached from above. The present treatment also unifies the usual textbook inductive subdivision expected much below Tc, and the equipartition as Tc is approached from below. The question of metastability is also briefly discussed.
Description: Restricted Access. An open-access version is available at (one of the alternative locations)
ISSN: E-ISSN: 1286-4854
P-ISSN: 0295-5075
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Copyright: 2007 IOP Publishing
Appears in Collections:Research Papers (TP)

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