Format du dépôt |
Fichier |
Type de dépôt |
Article dans une revue |
Résumé |
en
Electrical control of conjugate degrees of freedom in multiferroics provides the advantage of reducing energy consumption to femto- and even attojoules per switch in spintronics and memory devices. This is achieved through the development of technologies that make it possible to fabricate artificial materials with constantly improving properties. Here, we present the design, physics, and characteristics of a composite multiferroic spintronic emitter, which provides electrical control of the emitted terahertz (THz) wave polarization. The effect is due to electrical control of the magnetization in a high-quality magnetostrictive superlattice, TbCo2/FeCo, deposited on an anisotropic piezoelectric substrate. In our approach, several mechanisms are realized in the system simultaneously: the strain-mediated coupling of the magnetic and piezoelectric subsystems, which operate in the range of the spin-reorientation transition of the magnetic superlattice, and THz-wave generation in the superlattice by an optical femtosecond pulse. This provides flexibility and control of the set of parameters. We determine the magnetoelectric parameter, which is responsible for THz polarization control. Our results offer a significant fundamental insight into the physics of composite multiferroic systems that can be used for applications of multiferroicity, primarily for THz spintronic emitters. We believe that our findings represent a decisive step towards technologies for other types of spintronic and memory devices.
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Titre |
en
Composite Multiferroic Terahertz Emitter: Polarization Control via an Electric Field
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Auteur(s)
|
Dinar Khusyainov
1
, Sergei Ovcharenko
1
, Arseniy Buryakov
1
, A. Klimov
1
, Philippe Pernod
2, 3
, V. Nozdrin
4
, E. Mishina
1
, A. Sigov
1
, Vladimir L. Preobrazhensky
4, 2
, Nicolas Tiercelin
2, 3
1
MIREA -
Russian Technological University
( 547437 )
- Russie
2
AIMAN-FILMS - IEMN -
Acoustique Impulsionnelle & Magnéto-Acoustique Non linéaire - Fluides, Interfaces Liquides & Micro-Systèmes - IEMN
( 1066989 )
- Groupe AIMAN-FILMS (Magnéto-électriques, Electonique fonctionnelle, Acoustique, MEMS, Micro-fluidique) -
IEMN -
Université de Lille - Centrale Lille - Cité scientifique - BP48 - 59651 Villeneuve d'Ascq
- France
-
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 ( 1066983 )
;
-
Centrale Lille ( 120930 )
;
-
Université de Lille ( 374570 )
;
-
Centre National de la Recherche Scientifique UMR8520 ( 441569 )
;
-
Université Polytechnique Hauts-de-France ( 1001263 )
;
-
JUNIA ( 1059196 )
;
-
Université catholique de Lille ( 300877 )
3
IEMN -
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
( 1066983 )
- [Univ. Lille, CNRS, Centrale Lille Institut, Junia, Univ. Polytechnique Hauts-de-France] ––
Laboratoire Central – Cité Scientifique – Avenue Poincaré – CS 60069 – 59652 VILLENEUVE D’ASCQ CEDEX
- France
-
Centrale Lille ( 120930 )
;
-
Université de Lille ( 374570 )
;
-
Centre National de la Recherche Scientifique UMR8520 ( 441569 )
;
-
Université Polytechnique Hauts-de-France ( 1001263 )
;
-
JUNIA ( 1059196 )
;
-
Université catholique de Lille ( 300877 )
4
GPI -
A. M. Prokhorov General Physics Institute
( 22570 )
- Vavilov Str. 38, 119991 Moscow
- Russie
-
Russian Academy of Sciences [Moscow] ( 217892 )
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Nom de la revue |
|
Langue du document |
Anglais
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Date de publication |
2022-04
|
Volume |
17
|
Numéro |
4
|
Page/Identifiant |
044025
|
Référence interne |
|
Financement |
-
The work is supported by Russian Science Foundation (Grant No. 20-12-00276). Fabrication of thesamples was performed in the frame of French RENATECH network.
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Collaboration/Projet |
|
Domaine(s) |
-
Sciences de l'ingénieur [physics]/Micro et nanotechnologies/Microélectronique
-
Sciences de l'ingénieur [physics]/Optique / photonique
-
Sciences de l'ingénieur [physics]/Electromagnétisme
|
Mots-clés |
en
Multiferroics, Optoelectronics, Spin optoelectronics, Spintronics
|
DOI |
10.1103/PhysRevApplied.17.044025 |