RT Journal Article
T1 Enhancing the injection locking range of spin torque oscillators through mutual coupling
A1 Romera Rabasa, Miguel Álvaro
A1 Talatchian, Philippe
A1 Lebrun, Romain
A1 Merazzo, Karla
A1 Bortolotti, Paolo
A1 Vila, Laurent
A1 Costa, José
A1 Ferreira, Ricardo
A1 Freitas, Paulo
A1 Cyrille, Marie-Claire
A1 Ebels, Ursula
A1 Cros, Vincent
A1 Grollier, Julie
AB 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.
PB American Institute of Physics
SN 0003-6951
YR 2016
FD 2016
LK https://hdl.handle.net/20.500.14352/96069
UL https://hdl.handle.net/20.500.14352/96069
LA eng
NO 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
NO European Commission
NO Agence Nationale de la Recherche (France)
NO Renatech Network
DS Docta Complutense
RD 16 jul 2025