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dc.contributor.author
Aviles Felix, Luis Steven  
dc.contributor.author
Olivier, Aurélien  
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Li, Guanqiao  
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Davies, Carl S.  
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Álvaro Gómez, Laura  
dc.contributor.author
Rubio Roy, Miguel  
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Auffret, Stéphane  
dc.contributor.author
Kirilyuk, Andrei  
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Kimel, A.V.  
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Rasing, Theodorus  
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Buda Prejbeanu, Liliana Daniela  
dc.contributor.author
Sousa, Ricardo  
dc.contributor.author
Dieny, Bernard  
dc.contributor.author
Prejbeanu, Ioan Lucian  
dc.date.available
2021-11-10T17:35:10Z  
dc.date.issued
2020-03  
dc.identifier.citation
Aviles Felix, Luis Steven; Olivier, Aurélien; Li, Guanqiao; Davies, Carl S.; Álvaro Gómez, Laura; et al.; Single-shot all-optical switching of magnetization in Tb/Co multilayer-based electrodes; Nature; Scientific Reports; 10; 1; 3-2020; 1-8  
dc.identifier.issn
2045-2322  
dc.identifier.uri
http://hdl.handle.net/11336/146598  
dc.description.abstract
Ever since the first observation of all-optical switching of magnetization in the ferrimagnetic alloy GdFeCo using femtosecond laser pulses, there has been significant interest in exploiting this process for data-recording applications. In particular, the ultrafast speed of the magnetic reversal can enable the writing speeds associated with magnetic memory devices to be potentially pushed towards THz frequencies. This work reports the development of perpendicular magnetic tunnel junctions incorporating a stack of Tb/Co nanolayers whose magnetization can be all-optically controlled via helicity-independent single-shot switching. Toggling of the magnetization of the Tb/Co electrode was achieved using either 60 femtosecond-long or 5 picosecond-long laser pulses, with incident fluences down to 3.5 mJ/cm2, for Co-rich compositions of the stack either in isolation or coupled to a CoFeB-electrode/MgO-barrier tunnel-junction stack. Successful switching of the CoFeB-[Tb/Co] electrodes was obtained even after annealing at 250 °C. After integration of the [Tb/Co]-based electrodes within perpendicular magnetic tunnel junctions yielded a maximum tunneling magnetoresistance signal of 41% and RxA value of 150 Ωμm2 with current-in-plane measurements and ratios between 28% and 38% in nanopatterned pillars. These results represent a breakthrough for the development of perpendicular magnetic tunnel junctions controllable using single laser pulses, and offer a technologically-viable path towards the realization of hybrid spintronic-photonic systems featuring THz switching speeds.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Nature  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/  
dc.subject
optical switching  
dc.subject
magnetic tunnel junction  
dc.subject
memories  
dc.subject
electrodes  
dc.subject.classification
Física de los Materiales Condensados  
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Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Single-shot all-optical switching of magnetization in Tb/Co multilayer-based electrodes  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2021-10-20T18:20:45Z  
dc.journal.volume
10  
dc.journal.number
1  
dc.journal.pagination
1-8  
dc.journal.pais
Países Bajos  
dc.description.fil
Fil: Aviles Felix, Luis Steven. Universite Grenoble Alpes; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche | Comisión Nacional de Energía Atómica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche; Argentina  
dc.description.fil
Fil: Olivier, Aurélien. Universite Grenoble Alpes; Francia  
dc.description.fil
Fil: Li, Guanqiao. Radboud Universiteit Nijmegen; Países Bajos  
dc.description.fil
Fil: Davies, Carl S.. Radboud Universiteit Nijmegen; Países Bajos  
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Fil: Álvaro Gómez, Laura. Universite Grenoble Alpes; Francia  
dc.description.fil
Fil: Rubio Roy, Miguel. Universite Grenoble Alpes; Francia  
dc.description.fil
Fil: Auffret, Stéphane. Universite Grenoble Alpes; Francia  
dc.description.fil
Fil: Kirilyuk, Andrei. Radboud Universiteit Nijmegen; Países Bajos  
dc.description.fil
Fil: Kimel, A.V.. Radboud Universiteit Nijmegen; Países Bajos  
dc.description.fil
Fil: Rasing, Theodorus. Radboud Universiteit Nijmegen; Países Bajos  
dc.description.fil
Fil: Buda Prejbeanu, Liliana Daniela. Universite Grenoble Alpes; Francia  
dc.description.fil
Fil: Sousa, Ricardo. Universite Grenoble Alpes; Francia  
dc.description.fil
Fil: Dieny, Bernard. Universite Grenoble Alpes; Francia  
dc.description.fil
Fil: Prejbeanu, Ioan Lucian. Universite Grenoble Alpes; Francia  
dc.journal.title
Scientific Reports  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1038/s41598-020-62104-w  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-020-62104-w