Publikation: Phase sensitive shot noise in an Andreev interferometer
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2003
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Physical Review Letters. 2003, 90(6), 6660. Available under: doi: 10.1103/PhysRevLett.90.066601
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We investigate nonequilibrium noise in a diffusive Andreev interferometer, in which currents emerging from two normal metal/superconductor (N-S) interfaces can interfere. We observe a modulation of the shot noise when the phase difference between the two N-S interfaces is varied by a magnetic flux. This is the signature of phase-sensitive fluctuations in the normal metal. The effective charge inferred from the shot noise measurement is close to qeff = 2e but shows phase-dependent deviations from 2e at finite energy, which we interpret as being due to pair correlations. Experimental data are in good agreement with predictions based on an extended Keldysh Green s function approach.
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REULET, Bertrand, Alexay A. KOZHEVNIKOV, Daniel E. PROBER, Wolfgang BELZIG, Yuli V. NAZAROV, 2003. Phase sensitive shot noise in an Andreev interferometer. In: Physical Review Letters. 2003, 90(6), 6660. Available under: doi: 10.1103/PhysRevLett.90.066601BibTex
@article{Reulet2003Phase-4925,
year={2003},
doi={10.1103/PhysRevLett.90.066601},
title={Phase sensitive shot noise in an Andreev interferometer},
number={6},
volume={90},
journal={Physical Review Letters},
author={Reulet, Bertrand and Kozhevnikov, Alexay A. and Prober, Daniel E. and Belzig, Wolfgang and Nazarov, Yuli V.},
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