Phase controlled conductance of mesoscopic structures with superconducting "mirrors"

V. T. Petrashov, V. N. Antonov, P. Delsing, T. Claeson

Research output: Contribution to journalArticlepeer-review

168 Citations (Scopus)


The conductance of a normal N mesoscopic silver or antimony conductor, to which a superconducting S aluminum wire is attached at two points, oscillates when a control current in the superconductor is varied. The amplitude of oscillations ranges from 2×102(e2/h) for Ag/Al to 5.3×10-2(e2/h) for Sb/Al structures at T=0.02K. The oscillations are attributed to phase transfer from the superconducting condensate to normal electrons via Andreev reflections at the N-S interfaces ("mirrors"). The influence of the magnetic field and of the Aharonov-Bohm effect on the oscillations is studied.

Original languageEnglish
Pages (from-to)5268-5271
Number of pages4
JournalPhysical Review Letters
Issue number26
Publication statusPublished - 1995
Externally publishedYes


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