Real-Time Observation of Discrete Andreev Tunneling Events
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2011-05-25
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en
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4
1-4
1-4
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PHYSICAL REVIEW LETTERS, Volume 106, issue 21
Abstract
We provide a direct proof of two-electron Andreev transitions in a superconductor–normal-metal tunnel junction by detecting them in a real-time electron counting experiment. Our results are consistent with ballistic Andreev transport with an order of magnitude higher rate than expected for a uniform barrier, suggesting that only part of the interface is effectively contributing to the transport. These findings are quantitatively supported by our direct current measurements in single-electron transistors with similar tunnel barriers.Description
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tunneling
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Citation
Maisi , V , Saira , O-P , Pashkin , Y A , Tsai , J S , Averin , D V & Pekola , J P 2011 , ' Real-Time Observation of Discrete Andreev Tunneling Events ' , Physical Review Letters , vol. 106 , no. 21 , 217003 , pp. 1-4 . https://doi.org/10.1103/PhysRevLett.106.217003