Volume 88, Number 4, November 2009
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||25 November 2009|
Nonequilibrium mesoscopic superconductors in a fluctuational regime
Department of Theoretical Physics, Moscow Institute of Physics and Technology - 141700 Moscow, Russia
2 Argonne National Laboratory - Argonne, IL 60439, USA
Corresponding author: firstname.lastname@example.org
Accepted: 23 October 2009
We develop a non-equilibrium Ginzburg-Landau–type theory of the far-from-equilibrium dynamics of superconductors in a fluctuational regime and apply our approach to quantitative description of a superconductor island in a stationary nonequilibrium state. We derive the effective temperature of the nonequilibrium state and find fluctuational contributions to the magnetic susceptibility showing that it becomes a singular function of , where V is the external drive and is its “critical” value at which the nonequilibrium phase transition takes place.
PACS: 73.23.-b – Electronic transport in mesoscopic systems / 74.45.+c – Proximity effects; Andreev effect; SN and SNS junctions / 74.81.Fa – Josephson junction arrays and wire networks
© EPLA, 2009
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