RT Journal Article
T1 Enhancing the injection locking range of spin torque oscillators through mutual coupling
A1 Romera Rabasa, Miguel Álvaro
A1 Talatchian, P.
A1 Lebrun, R.
A1 Merazzo, K. J.
A1 Bortolotti, P.
A1 Vila, L.
A1 Costa, J. D.
A1 Ferreira, R.
A1 Freitas, P. P.
A1 Cyrille, M. C.
A1 Ebels, U.
A1 Cros, V.
A1 Grollier, J.
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
SN 1077-3118
YR 2016
FD 2016-12-19
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 Union Europea (Programa FP 7)
NO Agence Nationale de la Recherche (ANR)
NO Plateforme Technologie Amont in Grenoble through the Renatech network
NO ON2 project INTEGRATION
NO Consejo Europeo de Investigación (ERC)
DS Docta Complutense
RD 30 jun 2024