Shot noise and Coulomb effects on nonlocal electron transport in normal-metal/superconductor/normal-metal heterostructures
Dmitri S. Golubev, Andrei D. Zaikin
DOI 10.1103/PhysRevB.82.134508 · Physical Review B
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Abstract
We argue that Coulomb interaction can strongly influence nonlocal electron transport in normal-superconducting-normal structures and emphasize direct relation between Coulomb effects and nonlocal shot noise. In the tunneling limit nonlocal differential conductance is found to have an S-like shape and can turn negative at nonzero bias. At high transmissions crossed Andreev reflection yields positive noise cross correlations and Coulomb antiblockade of nonlocal electron transport.
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