Abstract：
: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.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Lebrun R,Tsunegi S,Bortolotti P,Kubota H,Jenkins AS,Romera M,Yakushiji K,Fukushima A,Grollier J,Yuasa S,Cros Vdoi
10.1038/ncomms15825subject
Has Abstractpub_date
2017-06-12 00:00:00pages
15825issn
2041-1723pii
ncomms15825journal_volume
8pub_type
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