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Tuning of the magnetotransport properties of a spin-polarized 2D electron system using visible light

We report on the effects of visible light on the low temperature electronic properties of the spin-polarized two dimensional electron system (2DES) formed at the interfaces between LaAlO[Formula: see text] , EuTiO[Formula: see text] and (001) SrTiO[Formula: see text] . A strong, persistent modulatio...

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Autores principales: D’Antuono, Maria, Chen, Yu, Caruso, Roberta, Jouault, Benoit, Salluzzo, Marco, Stornaiuolo, Daniela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10284910/
https://www.ncbi.nlm.nih.gov/pubmed/37344495
http://dx.doi.org/10.1038/s41598-023-36957-w
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author D’Antuono, Maria
Chen, Yu
Caruso, Roberta
Jouault, Benoit
Salluzzo, Marco
Stornaiuolo, Daniela
author_facet D’Antuono, Maria
Chen, Yu
Caruso, Roberta
Jouault, Benoit
Salluzzo, Marco
Stornaiuolo, Daniela
author_sort D’Antuono, Maria
collection PubMed
description We report on the effects of visible light on the low temperature electronic properties of the spin-polarized two dimensional electron system (2DES) formed at the interfaces between LaAlO[Formula: see text] , EuTiO[Formula: see text] and (001) SrTiO[Formula: see text] . A strong, persistent modulation of both longitudinal and transverse conductivity was obtained using light emitting diodes (LEDs) with emissions at different wavelengths in the visible spectrum range. In particular, Hall effect data show that visible light induces a non-volatile electron filling of bands with mainly 3d[Formula: see text] character, and at the same time an enhancement of the anomalous Hall effect associated to the magnetic properties of the system. Accordingly, a suppression of the weak-anti localization corrections to the magneto-conductance is found, which correlates with an enhancement of the spin-polarization and of the ferromagnetic character of 2DES. The results establish the LED-induced photo-doping as a viable route for the control of the ground state properties of artificial spin-polarized oxide 2DES.
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spelling pubmed-102849102023-06-23 Tuning of the magnetotransport properties of a spin-polarized 2D electron system using visible light D’Antuono, Maria Chen, Yu Caruso, Roberta Jouault, Benoit Salluzzo, Marco Stornaiuolo, Daniela Sci Rep Article We report on the effects of visible light on the low temperature electronic properties of the spin-polarized two dimensional electron system (2DES) formed at the interfaces between LaAlO[Formula: see text] , EuTiO[Formula: see text] and (001) SrTiO[Formula: see text] . A strong, persistent modulation of both longitudinal and transverse conductivity was obtained using light emitting diodes (LEDs) with emissions at different wavelengths in the visible spectrum range. In particular, Hall effect data show that visible light induces a non-volatile electron filling of bands with mainly 3d[Formula: see text] character, and at the same time an enhancement of the anomalous Hall effect associated to the magnetic properties of the system. Accordingly, a suppression of the weak-anti localization corrections to the magneto-conductance is found, which correlates with an enhancement of the spin-polarization and of the ferromagnetic character of 2DES. The results establish the LED-induced photo-doping as a viable route for the control of the ground state properties of artificial spin-polarized oxide 2DES. Nature Publishing Group UK 2023-06-21 /pmc/articles/PMC10284910/ /pubmed/37344495 http://dx.doi.org/10.1038/s41598-023-36957-w Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
D’Antuono, Maria
Chen, Yu
Caruso, Roberta
Jouault, Benoit
Salluzzo, Marco
Stornaiuolo, Daniela
Tuning of the magnetotransport properties of a spin-polarized 2D electron system using visible light
title Tuning of the magnetotransport properties of a spin-polarized 2D electron system using visible light
title_full Tuning of the magnetotransport properties of a spin-polarized 2D electron system using visible light
title_fullStr Tuning of the magnetotransport properties of a spin-polarized 2D electron system using visible light
title_full_unstemmed Tuning of the magnetotransport properties of a spin-polarized 2D electron system using visible light
title_short Tuning of the magnetotransport properties of a spin-polarized 2D electron system using visible light
title_sort tuning of the magnetotransport properties of a spin-polarized 2d electron system using visible light
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10284910/
https://www.ncbi.nlm.nih.gov/pubmed/37344495
http://dx.doi.org/10.1038/s41598-023-36957-w
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