Shot noise and Coulomb effects on non-local electron transport in normal-superconducting-normal heterostructures

Details Shot noise and Coulomb effects on non-local electron transport in normal-superconducting-normal heterostructures Shot noise and Coulomb effects on non-local electron transport in normal-superconducting-normal heterostructures

2010-07-14

arxiv.org/abs/1007.2357v2

Phys. Rev. B 82, 134508 (2010)

Physics

Condensed Matter

Superconductivity

8 pages, 2 figures. Published version

Scientific paper

10.1103/PhysRevB.82.134508

We argue that Coulomb interaction can strongly influence non-local electron transport in normal-superconducting-normal structures and emphasize direct relation between Coulomb effects and non-local shot noise. In the tunneling limit non-local differential conductance is found to have an S-like shape and can turn negative at non-zero bias. At high transmissions crossed Andreev reflection yields positive noise cross-correlations and Coulomb anti-blockade of non-local electron transport.

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