RT Journal Article
T1 Mutual synchronization of spin torque nano-oscillators through a long-range and tunable electrical coupling scheme
A1 Lebrun, Romain
A1 Tsunegi, Sumito
A1 Bortolotti, Paolo
A1 Kubota, Hitoshi
A1 Jenkins, Alex
A1 Romera Rabasa, Miguel Álvaro
A1 Yakushiji, Kai
A1 Fukushima, Akio
A1 Grollier, Julie
A1 Yuasa, Shinji
A1 Cros, Vincent
AB The concept of spin-torque-driven high-frequency magnetization dynamics, allows the potential construction of complex networks of non-linear dynamical nanoscale systems, combining the field of spintronics and the study of non-linear systems. In the few previous demonstrations of synchronization of several spin-torque oscillators, the short-range nature of the magnetic coupling that was used has largely hampered a complete control of the synchronization process. Here we demonstrate the successful mutual synchronization of two spin-torque oscillators with a large separation distance through their long range self-emitted microwave currents. This leads to a strong improvement of both the emitted power and the linewidth. The full control of the synchronized state is achieved at the nanoscale through two active spin transfer torques, but also externally through an electrical delay line. These additional levels of control of the synchronization capability provide a new approach to develop spin-torque oscillator-based nanoscale microwave-devices going from microwave-sources to bio-inspired networks.
PB Nature
SN 2041-1723
YR 2017
FD 2017
LK https://hdl.handle.net/20.500.14352/98227
UL https://hdl.handle.net/20.500.14352/98227
LA eng
NO Lebrun, R., Tsunegi, S., Bortolotti, P. et al. Mutual synchronization of spin torque nano-oscillators through a long-range and tunable electrical coupling scheme. Nat Commun 8, 15825 (2017). https://doi.org/10.1038/ncomms15825
NO European Commission
NO Agence Nationale de la Recherche (Francia)
DS Docta Complutense
RD 19 dic 2025