2026-06-29T07:25:12Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/960692025-09-02T16:58:59Zcom_20.500.14352_14col_20.500.14352_15
Enhancing the injection locking range of spin torque oscillators through mutual coupling
Romera Rabasa, Miguel Álvaro
Talatchian, Philippe
Lebrun, Romain
Merazzo, Karla
Bortolotti, Paolo
Vila, Laurent
Costa, José
Ferreira, Ricardo
Freitas, Paulo
Cyrille, Marie-Claire
Ebels, Ursula
Cros, Vincent
Grollier, Julie
538.9
Phase-Locking
Microwave Generation
Nano-Oscillators
Synchronization
Física del estado sólido
2211.17 Propiedades Magnéticas
We investigate how the ability of the vortex oscillation mode of a spin-torque nano-oscillator to lock to an external microwave signal is modified when it is coupled to another oscillator. We show experimentally that the mutual electrical coupling can lead to locking range enhancements of a factor 1.64. Furthermore, we analyze the evolution of the locking range as a function of the coupling strength through experiments and numerical simulations. By uncovering the mechanisms at stake in the locking range enhancement, our results will be useful for designing spin-torque nano-oscillator arrays with high sensitivities to external microwave stimuli. Published by AIP Publishing.
European Commission
Agence Nationale de la Recherche (France)
Renatech Network
Depto. de Física de Materiales
Fac. de Ciencias Físicas
TRUE
pub
2024-01-29T13:12:32Z
2024-01-29T13:12:32Z
2016
journal article
VoR
https://hdl.handle.net/20.500.14352/96069
0003-6951
10.1063/1.4972346
1077-3118
eng
info:eu-repo/grantAgreement/ANR-14-CE26-0021
info:eu-repo/grantAgreement/NORTE-07-0124-FEDER-000050
info:eu-repo/grantAgreement/EC/FP7/317950
M. Romera, P. Talatchian, R. Lebrun, K. J. Merazzo, P. Bortolotti, L. Vila, J. D. Costa, R. Ferreira, P. P. Freitas, M.-C. Cyrille, U. Ebels, V. Cros, J. Grollier; Enhancing the injection locking range of spin torque oscillators through mutual coupling. Appl. Phys. Lett. 19 December 2016; 109 (25): 252404. https://doi.org/10.1063/1.4972346
restricted access
application/pdf
American Institute of Physics