Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transport
We present both theoretical and experimental investigations of the proximity effect in a stack-like superconductor/ferromagnetic (S/F) superlattice, where ferromagnetic layers with different thicknesses and coercive fields are made of Co. Calculations based on the Usadel equations allow us to find t...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Beilstein-Institut
2020-09-01
|
| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.11.118 |
| _version_ | 1819028422450479104 |
|---|---|
| author | Sergey Bakurskiy Mikhail Kupriyanov Nikolay V. Klenov Igor Soloviev Andrey Schegolev Roman Morari Yury Khaydukov Anatoli S. Sidorenko |
| author_facet | Sergey Bakurskiy Mikhail Kupriyanov Nikolay V. Klenov Igor Soloviev Andrey Schegolev Roman Morari Yury Khaydukov Anatoli S. Sidorenko |
| author_sort | Sergey Bakurskiy |
| collection | DOAJ |
| description | We present both theoretical and experimental investigations of the proximity effect in a stack-like superconductor/ferromagnetic (S/F) superlattice, where ferromagnetic layers with different thicknesses and coercive fields are made of Co. Calculations based on the Usadel equations allow us to find the conditions at which switching from the parallel to the antiparallel alignment of the neighboring F-layers leads to a significant change of the superconducting order parameter in superconductive thin films. We experimentally study the transport properties of a lithographically patterned Nb/Co multilayer. We observe that the resistive transition of the multilayer structure has multiple steps, which we attribute to the transition of individual superconductive layers with the critical temperature, Tc, depending on the local magnetization orientation of the neighboring F-layers. We argue that such superlattices can be used as tunable kinetic inductors designed for artificial neural networks representing the information in a “current domain”. |
| first_indexed | 2024-12-21T05:58:07Z |
| format | Article |
| id | doaj.art-48f3eab30c024a13b53b811c2870ba33 |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-12-21T05:58:07Z |
| publishDate | 2020-09-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-48f3eab30c024a13b53b811c2870ba332022-12-21T19:13:49ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862020-09-011111336134510.3762/bjnano.11.1182190-4286-11-118Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transportSergey Bakurskiy0Mikhail Kupriyanov1Nikolay V. Klenov2Igor Soloviev3Andrey Schegolev4Roman Morari5Yury Khaydukov6Anatoli S. Sidorenko7Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, 119991, RussiaLomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, 119991, RussiaLomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, 119991, RussiaLomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, 119991, RussiaLomonosov Moscow State University, Physics Department, Moscow, 119991, RussiaMoscow Institute of Physics and Technology, State University, Dolgoprudny, Moscow Region 141700, RussiaLomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, 119991, RussiaInstitute of Electronic Engineering and Nanotechnologies ASM, MD2028 Kishinev, MoldovaWe present both theoretical and experimental investigations of the proximity effect in a stack-like superconductor/ferromagnetic (S/F) superlattice, where ferromagnetic layers with different thicknesses and coercive fields are made of Co. Calculations based on the Usadel equations allow us to find the conditions at which switching from the parallel to the antiparallel alignment of the neighboring F-layers leads to a significant change of the superconducting order parameter in superconductive thin films. We experimentally study the transport properties of a lithographically patterned Nb/Co multilayer. We observe that the resistive transition of the multilayer structure has multiple steps, which we attribute to the transition of individual superconductive layers with the critical temperature, Tc, depending on the local magnetization orientation of the neighboring F-layers. We argue that such superlattices can be used as tunable kinetic inductors designed for artificial neural networks representing the information in a “current domain”.https://doi.org/10.3762/bjnano.11.118cryogenic computingspin-valvesuperconducting neural networksuperconducting spintronics |
| spellingShingle | Sergey Bakurskiy Mikhail Kupriyanov Nikolay V. Klenov Igor Soloviev Andrey Schegolev Roman Morari Yury Khaydukov Anatoli S. Sidorenko Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transport Beilstein Journal of Nanotechnology cryogenic computing spin-valve superconducting neural network superconducting spintronics |
| title | Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transport |
| title_full | Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transport |
| title_fullStr | Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transport |
| title_full_unstemmed | Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transport |
| title_short | Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transport |
| title_sort | controlling the proximity effect in a co nb multilayer the properties of electronic transport |
| topic | cryogenic computing spin-valve superconducting neural network superconducting spintronics |
| url | https://doi.org/10.3762/bjnano.11.118 |
| work_keys_str_mv | AT sergeybakurskiy controllingtheproximityeffectinaconbmultilayerthepropertiesofelectronictransport AT mikhailkupriyanov controllingtheproximityeffectinaconbmultilayerthepropertiesofelectronictransport AT nikolayvklenov controllingtheproximityeffectinaconbmultilayerthepropertiesofelectronictransport AT igorsoloviev controllingtheproximityeffectinaconbmultilayerthepropertiesofelectronictransport AT andreyschegolev controllingtheproximityeffectinaconbmultilayerthepropertiesofelectronictransport AT romanmorari controllingtheproximityeffectinaconbmultilayerthepropertiesofelectronictransport AT yurykhaydukov controllingtheproximityeffectinaconbmultilayerthepropertiesofelectronictransport AT anatolissidorenko controllingtheproximityeffectinaconbmultilayerthepropertiesofelectronictransport |