Shot noise and Coulomb effects on nonlocal electron transport in normal-metal/superconductor/normal-metal heterostructures

Article

关键词: TUNNEL-JUNCTIONS;    QUANTUM DYNAMICS;    SUPERCONDUCTOR;   

DOI  :  10.1103/PhysRevB.82.134508

来源: SCIE

【 摘 要 】

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.

【 授权许可】

Free