1 research outputs found
Electron-hole imbalance in superconductor-normal metal mesoscopic structures
We analysed the electron-hole or, in another words, branch imbalance (BI) and
the related electric potential which may arise in a mesoscopic
superconductor/normal metal (S/N) structure under non-equilibrium conditions in
the presence of a supercurrent. Non-equilibrium conditions can be created in
different ways: a) a quasiparticle current flowing between the N reservoirs; b)
a temperature gradient between the N reservoirs and no quasiparticle current.
It is shown that the voltage oscillates with the phase difference
. In a cross-geometry structure the voltage arises in the
vertical branch and affects the conditions for a transition into the
-state.Comment: 6 pages, 5 figures, accepted for publication in Europhysics Letter