https://doi.org/10.1140/epjb/e2003-00115-6
Electron transport in interacting hybrid mesoscopic systems
1
Department of Physics, National University of
Singapore, 117542, Singapore
2
Facultad de Física, Pontificia Universidad Católica de
Chile, Casilla 306, Santiago 22, Chile
Corresponding author: a phyzengz@nus.edu.sg
Received:
22
August
2002
Revised:
14
February
2003
Published online:
11
April
2003
A unified theory for the current through a mesoscopic region of interacting electrons connected to two leads which can be either ferromagnet or superconductor is presented, yielding Meir-Wingreen-type formulas when applied to specific circumstances. In such a formulation, the requirement of gauge invariance is satisfied automatically. Moreover, one can judge unambiguously what quantities can be measured in the transport experiment.
PACS: 72.10.Bg – General formulation of transport theory / 73.63.-b – Electronic transport in nanoscale materials and structures / 72.25.-b – Spin polarized transport / 74.50.+r – Tunneling phenomena; point contacts, weak links, Josephson effects
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
