| Issue |
EPL
Volume 88, Number 4, November 2009
|
|
|---|---|---|
| Article Number | 47001 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/88/47001 | |
| Published online | 25 November 2009 | |
Nonequilibrium mesoscopic superconductors in a fluctuational regime
1
Department of Theoretical Physics, Moscow Institute of Physics and Technology - 141700 Moscow, Russia
2
Argonne National Laboratory - Argonne, IL 60439, USA
Corresponding author: nms@itp.ac.ru
Received:
27
August
2009
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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