Investigation of the Features of a Superconducting Spin Valve Fe1/Cu/Fe2/Cu/Pb on a Piezoelectric PMN–PT Substrate

The properties of a superconducting spin valve Fe1/Cu/Fe2/Cu/Pb on a piezoelectric PMN–PT substrate ([Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>]<sub>0.7</sub>–[PbTiO<sub>3</sub>]<sub>0.3</sub>) in electric and magnetic f...

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Main Authors: Andrey Kamashev, Nadir Garif’yanov, Aidar Validov, Zvonko Jagličić, Viktor Kabanov, Rinat Mamin, Ilgiz Garifullin
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Magnetism
Subjects:
Online Access:https://www.mdpi.com/2673-8724/3/3/16
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author Andrey Kamashev
Nadir Garif’yanov
Aidar Validov
Zvonko Jagličić
Viktor Kabanov
Rinat Mamin
Ilgiz Garifullin
author_facet Andrey Kamashev
Nadir Garif’yanov
Aidar Validov
Zvonko Jagličić
Viktor Kabanov
Rinat Mamin
Ilgiz Garifullin
author_sort Andrey Kamashev
collection DOAJ
description The properties of a superconducting spin valve Fe1/Cu/Fe2/Cu/Pb on a piezoelectric PMN–PT substrate ([Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>]<sub>0.7</sub>–[PbTiO<sub>3</sub>]<sub>0.3</sub>) in electric and magnetic fields have been studied. The magnitude of the shift of the superconducting transition temperature in the magnetic field <i>H</i> = 1 kOe equal to 150 mK was detected, while the full superconducting spin valve effect was demonstrated. Abnormal behavior of the superconducting transition temperature was observed, which manifests itself in the maximum values of the superconducting transition temperature with the orthogonal orientation of the magnetization vectors of ferromagnetic layers. This may indirectly indicate the formation of the easy axis of the magnetization vector of the Fe1-layer adjacent to the piezoelectric substrate PMN–PT. It was found that with an increase in the magnitude of the applied electric field to the PMN–PT substrate, the shift in the superconducting transition temperature of the Fe1/Cu/Fe2/Cu/Pb heterostructure increases. The maximum shift was 10 mK in an electric field of 1 kV/cm. Thus, it has been shown for the first time that a piezoelectric superconducting spin valve can function.
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spelling doaj.art-8f7a4186d5be4490a420746afd3833fd2023-11-19T11:41:22ZengMDPI AGMagnetism2673-87242023-07-013320421410.3390/magnetism3030016Investigation of the Features of a Superconducting Spin Valve Fe1/Cu/Fe2/Cu/Pb on a Piezoelectric PMN–PT SubstrateAndrey Kamashev0Nadir Garif’yanov1Aidar Validov2Zvonko Jagličić3Viktor Kabanov4Rinat Mamin5Ilgiz Garifullin6Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS, 420029 Kazan, RussiaZavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS, 420029 Kazan, RussiaZavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS, 420029 Kazan, RussiaInstitute of Mathematics, Physics and Mechanics and Faculty of Civil and Geodetic Engineering, University of Ljubljana, 1000 Ljubljana, SloveniaDepartment for Complex Matter, Jozef Stefan Institute, 1000 Ljubljana, SloveniaZavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS, 420029 Kazan, RussiaZavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS, 420029 Kazan, RussiaThe properties of a superconducting spin valve Fe1/Cu/Fe2/Cu/Pb on a piezoelectric PMN–PT substrate ([Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>]<sub>0.7</sub>–[PbTiO<sub>3</sub>]<sub>0.3</sub>) in electric and magnetic fields have been studied. The magnitude of the shift of the superconducting transition temperature in the magnetic field <i>H</i> = 1 kOe equal to 150 mK was detected, while the full superconducting spin valve effect was demonstrated. Abnormal behavior of the superconducting transition temperature was observed, which manifests itself in the maximum values of the superconducting transition temperature with the orthogonal orientation of the magnetization vectors of ferromagnetic layers. This may indirectly indicate the formation of the easy axis of the magnetization vector of the Fe1-layer adjacent to the piezoelectric substrate PMN–PT. It was found that with an increase in the magnitude of the applied electric field to the PMN–PT substrate, the shift in the superconducting transition temperature of the Fe1/Cu/Fe2/Cu/Pb heterostructure increases. The maximum shift was 10 mK in an electric field of 1 kV/cm. Thus, it has been shown for the first time that a piezoelectric superconducting spin valve can function.https://www.mdpi.com/2673-8724/3/3/16ferromagneticpiezoelectric substratepiezoelectric superconducting spin valvesuperconductivitymagnetismheterostructure
spellingShingle Andrey Kamashev
Nadir Garif’yanov
Aidar Validov
Zvonko Jagličić
Viktor Kabanov
Rinat Mamin
Ilgiz Garifullin
Investigation of the Features of a Superconducting Spin Valve Fe1/Cu/Fe2/Cu/Pb on a Piezoelectric PMN–PT Substrate
Magnetism
ferromagnetic
piezoelectric substrate
piezoelectric superconducting spin valve
superconductivity
magnetism
heterostructure
title Investigation of the Features of a Superconducting Spin Valve Fe1/Cu/Fe2/Cu/Pb on a Piezoelectric PMN–PT Substrate
title_full Investigation of the Features of a Superconducting Spin Valve Fe1/Cu/Fe2/Cu/Pb on a Piezoelectric PMN–PT Substrate
title_fullStr Investigation of the Features of a Superconducting Spin Valve Fe1/Cu/Fe2/Cu/Pb on a Piezoelectric PMN–PT Substrate
title_full_unstemmed Investigation of the Features of a Superconducting Spin Valve Fe1/Cu/Fe2/Cu/Pb on a Piezoelectric PMN–PT Substrate
title_short Investigation of the Features of a Superconducting Spin Valve Fe1/Cu/Fe2/Cu/Pb on a Piezoelectric PMN–PT Substrate
title_sort investigation of the features of a superconducting spin valve fe1 cu fe2 cu pb on a piezoelectric pmn pt substrate
topic ferromagnetic
piezoelectric substrate
piezoelectric superconducting spin valve
superconductivity
magnetism
heterostructure
url https://www.mdpi.com/2673-8724/3/3/16
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