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Multiple superconducting ring ratchets for ultrasensitive detection of non-equilibrium noise

2015/07/21 by V. L. Gurtovoi, M. Exarchos, V. N. Antonov +2 · 1 citation
Physics and Astronomy · #cond-mat.mes-hall #cond-mat.supr-con

paper · pdf · doi:10.1063/1.4958731

6 pages, 6 figures

arxiv created 2015/07/21 · arxiv updated 2016/08/03

Abstract

Magnetic quantum periodicity in the dc voltage is observed when asymmetric rings are switched between superconducting and normal state by a noise or ac current. This quantum effect is used for detection of a non-equilibrium noise with the help of a system of 667 asymmetric aluminum rings of 1 μm in diameter connected in series. Any noise down to the equilibrium one can be detected with the help of such system with enough great number of asymmetric rings.

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