Efficient synchronization of dipolarly coupled vortex-based spin transfer nano-oscillators

Nicolas Locatelli 1, 2, * Abbass Hamadeh 3 Flavio Abreu Araujo 4 Anatoly D. Belanovsky 5 Petr N. Skirdkov 5 Vladimir V. Naletov 3 Konstantin A. Zvezdin 5 Manuel Muñoz 6 Julie Grollier 1 Olivier Klein 7 Vincent Cros 1, * Romain Lebrun 1 Grégoire De Loubens 3
* Auteur correspondant
1 UMP CNRS/THALES - Unité mixte de physique CNRS/Thalès
2 IEF - Institut d'électronique fondamentale
3 LNO - Laboratoire Nano-Magnétisme et Oxydes
SPEC - UMR3680 - Service de physique de l'état condensé, IRAMIS - Institut Rayonnement Matière de Saclay
4 IMCN - Institut de la matière condensée et des nanosciences / Institute of Condensed Matter and Nanosciences
5 GPI - A. M. Prokhorov General Physics Institute
6 Instituto Carlos I de Fisica Teorica y Computacional
7 SPINTEC - SPINtronique et TEchnologie des Composants
Abstract : Due to their nonlinear properties, spin transfer nano-oscillators can easily adapt their frequency to external stimuli. This makes them interesting model systems to study the effects of synchronization and brings some opportunities to improve their microwave characteristics in view of their applications in information and communication technologies and/or to design innovative computing architectures. So far, mutual synchronization of spin transfer nano-oscillators through propagating spinwaves and exchange coupling in a common magnetic layer has been demonstrated. Here we show that the dipolar interaction is also an efficient mechanism to synchronize neighbouring oscillators. We experimentally study a pair of vortex-based spin transfer nano-oscillators, in which mutual synchronization can be achieved despite a significant frequency mismatch between oscillators. Importantly, the coupling efficiency is controlled by the magnetic configuration of the vortices, as confirmed by an analytical model and micromagnetic simulations highlighting the physics at play in the synchronization process.
Type de document :
Article dans une revue
Scientific Reports, Nature Publishing Group, 2015, 5, pp.17039. 〈10.1038/srep17039〉
Liste complète des métadonnées

Littérature citée [56 références]  Voir  Masquer  Télécharger
https://hal-cea.archives-ouvertes.fr/cea-01497897
Contributeur : Dominique Girard <>
Soumis le : mercredi 29 mars 2017 - 14:33:10
Dernière modification le : jeudi 7 mars 2019 - 16:20:03

Fichier

srep17039.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

CEA | DSM-INAC | DSM-IRAMIS | INAC-SPINTEC | IRAMIS-SPEC | UGA | UNIV-PARIS-SACLAY | CEA-DRF | CEA-UPSAY | IRIG | CEA-GRE

Citation

Nicolas Locatelli, Abbass Hamadeh, Flavio Abreu Araujo, Anatoly D. Belanovsky, Petr N. Skirdkov, et al.. Efficient synchronization of dipolarly coupled vortex-based spin transfer nano-oscillators. Scientific Reports, Nature Publishing Group, 2015, 5, pp.17039. 〈10.1038/srep17039〉. 〈cea-01497897〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

385

Téléchargements de fichiers

51

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD