Non-local electron transport and Coulomb effects in three-terminal metallic conductors

Details Non-local electron transport and Coulomb effects in three-terminal metallic conductors Non-local electron transport and Coulomb effects in three-terminal metallic conductors

2012-03-08

arxiv.org/abs/1203.1787v1

J. Phys. Conf. Ser. 338, 012009 (2012)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 3 figures. arXiv admin note: text overlap with arXiv:1007.2357

Scientific paper

10.1088/1742-6596/338/1/012009

We demonstrate a close relation between Coulomb effects in non-local electron transport and non-local shot noise in three-terminal metallic conductors. Provided the whole structure is normal, cross-correlations in shot noise are negative and Coulomb interaction tends to suppress both local and non-local conductances of the system. The behavior of normal-superconducting-normal structures at subgap energies is entirely different. In the tunneling limit non-local differential conductance of such systems are 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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