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Re-entrance superconductivity in nanostructures based on Nb and Cu-Ni – alloy layers

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dc.contributor.author MORARI, Roman
dc.date.accessioned 2024-04-25T13:01:57Z
dc.date.available 2024-04-25T13:01:57Z
dc.date.issued 2024
dc.identifier.citation MORARI, Roman. Re-entrance superconductivity in nanostructures based on Nb and Cu-Ni – alloy layers. In: Quo Vadis – Ethics of the Scientific Research: conf. NANO-2024, event devoted to the 60th anniversary of the Technical University of Moldova, 15-18 April 2024, Chişinău, Republica Moldova: Program and proceedings of the conference, Chişinău 2024, p. 86. ISBN 978-9975-64-422-8. en_US
dc.identifier.isbn 978-9975-64-422-8
dc.identifier.uri http://repository.utm.md/handle/5014/26927
dc.description.abstract An original vacuum technology for reliable and reproducible preparation of high quality nanostructures “superconductor /ferromagnet” (S/F) using magnetron sputtering is developed. Superconducting properties of atomic smooth Nb/CuNi bilayers are investigated. The quality of the films was characterized by Auge-spectoscopy, AFM, TEM and SEM microscopy studies. The thickness of the layers and their composition was determined by the Rutherford backscattering spectrometry (RBS). For specimens with constant Nb layer thickness we observed distinct oscillations of the superconducting critical temperature till the re-entrant behavior upon increasing the thickness of the CuNi layer. The results are interpreted in terms of Fulde-Ferrell-Larkin -Ovchinnikov (FFLO) like inhomogeneous superconducting pairing in the ferromagnetic CuNi layer. The obtained results can be used for superconducting electronics and spintronics. en_US
dc.language.iso en en_US
dc.publisher Technical University of Moldova en_US
dc.relation.ispartofseries NANO-2024 "Quo Vadis – Ethics of the Scientific Research", event devoted to the 60th anniversary of the Technical University of Moldova;15-18 April 2024, Chişinău, Republica Moldova
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject nanostructures en_US
dc.subject alloy layers en_US
dc.subject Rutherford backscattering spectrometry en_US
dc.title Re-entrance superconductivity in nanostructures based on Nb and Cu-Ni – alloy layers en_US
dc.type Article en_US


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