Phase Controlled Conductance of Mesoscopic Structures with Superconducting “Mirrors”
V. T. Petrashov, V. N. Antonov, P. Delsing, T. Claeson
DOI 10.1103/PhysRevLett.74.5268 · Physical Review Letters
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Abstract
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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.3 | Pressure not reported | onset |
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