Nonlocal correlations in normal-metal superconducting systems

P. Cadden-Zimansky*, V. Chandrasekhar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

141 Scopus citations


We examine nonlocal effects between normal-metal gold probes connected by superconducting aluminum. For highly transparent Au/Al interfaces, we find nonlocal voltages that obey a spatial and temperature evolution distinct from the nonequilibrium charge imbalance signals usually found in such systems. These voltages are consistent with the predicted effects of crossed Andreev reflection and elastic cotunneling, effects that involve coherent correlations between spatially separated electrons.

Original languageEnglish (US)
Article number237003
JournalPhysical review letters
Issue number23
StatePublished - 2006

ASJC Scopus subject areas

  • General Physics and Astronomy


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