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Normal Metal–Insulator–Superconductor Aharonov-Bohm Interferometer.

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Title: Normal Metal–Insulator–Superconductor Aharonov-Bohm Interferometer.
Authors: Arutyunov, K. Yu.1,2 (AUTHOR) karutyunov@hse.ru, Gurskiy, A. S.1 (AUTHOR), Pozdnyakova, E. Ph.1 (AUTHOR), Shapovalov, D. L.2 (AUTHOR), Deng, Guang-Wei3 (AUTHOR), Chekushkin, A. M.4 (AUTHOR), Markina, M. A.4 (AUTHOR), Tarasov, M. A.4 (AUTHOR)
Source: Journal of Superconductivity & Novel Magnetism. Dec2024, Vol. 37 Issue 11/12, p1913-1916. 4p.
Subjects: Aharonov-Bohm effect, Optical interferometers, Copper, Wave functions, Aluminum oxide
Abstract: When a non-equilibrium excitation (a non-paired electron) is injected into a superconductor, it can travel fairly large distance before forming an equilibrium Copper pair. Here, we fabricated and experimentally studied electron transport in a solid-state analogue of a two-slit optical interferometer: T-shaped normal metal electrode (copper) — dielectric tunnel layer (aluminum oxide) — superconducting fork (aluminum). If the perimeter of the interferometer loop is sufficiently small, the phase of the non-equilibrium quasiparticle wave function is preserved and can be adjusted utilizing the Aharonov-Bohm effect. The coherent contribution manifests itself as non-monotonic dependence of the tunnel current on perpendicular magnetic field. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Superconductivity & Novel Magnetism is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Normal Metal–Insulator–Superconductor Aharonov-Bohm Interferometer.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Superconductivity+%26+Novel+Magnetism%22">Journal of Superconductivity & Novel Magnetism</searchLink>. Dec2024, Vol. 37 Issue 11/12, p1913-1916. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Aharonov-Bohm+effect%22">Aharonov-Bohm effect</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+interferometers%22">Optical interferometers</searchLink><br /><searchLink fieldCode="DE" term="%22Copper%22">Copper</searchLink><br /><searchLink fieldCode="DE" term="%22Wave+functions%22">Wave functions</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+oxide%22">Aluminum oxide</searchLink>
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  Data: When a non-equilibrium excitation (a non-paired electron) is injected into a superconductor, it can travel fairly large distance before forming an equilibrium Copper pair. Here, we fabricated and experimentally studied electron transport in a solid-state analogue of a two-slit optical interferometer: T-shaped normal metal electrode (copper) — dielectric tunnel layer (aluminum oxide) — superconducting fork (aluminum). If the perimeter of the interferometer loop is sufficiently small, the phase of the non-equilibrium quasiparticle wave function is preserved and can be adjusted utilizing the Aharonov-Bohm effect. The coherent contribution manifests itself as non-monotonic dependence of the tunnel current on perpendicular magnetic field. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Superconductivity & Novel Magnetism is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Optical interferometers
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      – SubjectFull: Copper
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      – SubjectFull: Wave functions
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              Text: Dec2024
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