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

Vladimir Gurtovoi; Michael Exarchos; Vladimir Antonov; A.V. Nikulov; V. A.  Tulin

doi:10.1063/1.4958731

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

Vladimir Gurtovoi, Michael Exarchos, Vladimir Antonov, A.V. Nikulov, V. A. Tulin

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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 the detection of a non-equilibrium noise using a system of 667 asymmetric aluminum rings of 1 um diameter connected in series. Any noise down to the equilibrium one can be detected with large number of asymmetric rings. The equilibrium noise can induce the dc voltage close to the superconducting transition. In our sample we observe the dc voltage oscillation only below the superconducting transition.

Original language	English
Article number	032602
Pages (from-to)	1-4
Number of pages	4
Journal	Applied Physics Letters
Volume	109
Issue number	3
Early online date	18 Jul 2016
DOIs	https://doi.org/10.1063/1.4958731
Publication status	E-pub ahead of print - 18 Jul 2016

Keywords

SUPERCONDUCTING RINGS
MESOSCOPIC STRUCTURES
NON-EQUILIBRIUM NOISE

Access to Document

10.1063/1.4958731

Accepted ManuscriptAccepted author manuscript, 5.8 MB

http://scitation.aip.org/content/aip/journal/apl/109/3/10.1063/1.4958731

Cite this

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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 the detection of a non-equilibrium noise using a system of 667 asymmetric aluminum rings of 1 um diameter connected in series. Any noise down to the equilibrium one can be detected with large number of asymmetric rings. The equilibrium noise can induce the dc voltage close to the superconducting transition. In our sample we observe the dc voltage oscillation only below the superconducting transition.",

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AU - Gurtovoi, Vladimir

AU - Exarchos, Michael

AU - Antonov, Vladimir

AU - Nikulov, A.V.

AU - Tulin, V. A.

PY - 2016/7/18

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N2 - 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 the detection of a non-equilibrium noise using a system of 667 asymmetric aluminum rings of 1 um diameter connected in series. Any noise down to the equilibrium one can be detected with large number of asymmetric rings. The equilibrium noise can induce the dc voltage close to the superconducting transition. In our sample we observe the dc voltage oscillation only below the superconducting transition.

AB - 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 the detection of a non-equilibrium noise using a system of 667 asymmetric aluminum rings of 1 um diameter connected in series. Any noise down to the equilibrium one can be detected with large number of asymmetric rings. The equilibrium noise can induce the dc voltage close to the superconducting transition. In our sample we observe the dc voltage oscillation only below the superconducting transition.

KW - SUPERCONDUCTING RINGS

KW - MESOSCOPIC STRUCTURES

KW - NON-EQUILIBRIUM NOISE

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