Tuesday, February 14, 2012

1202.2588 (N. Vercruyssen et al.)

Evanescent states and non-equilibrium in driven superconducting
nanowires
   [PDF]

N. Vercruyssen, T. G. A. Verhagen, M. G. Flokstra, J. P. Pekola, T. M. Klapwijk
We study the non linear response of current-transport in a superconducting
diffusive nanowire between normal reservoirs. We demonstrate theoretically and
experimentally the existence of two different superconducting states appearing
when the wire is driven out of equilibrium by an applied bias, called global
and bimodal superconducting state. The different states are identified by using
two probe measurements of the wire, and measurements of the local density of
states with tunneling probes. The analysis is performed within the framework of
the quasiclassical kinetic equations for diffusive superconductors.
View original: http://arxiv.org/abs/1202.2588

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