171 citations · 183 across the 3 of their papers we have counts for
6 papers
Efficient Synchronization of Dipolarly Coupled Vortex-Based Spin Transfer Nano-Oscillators
N. Locatelli, A. Hamadeh, F. Abreu Araujo +10
Due to their nonlinear properties, spin transfer nano-oscillators can easily adapt their frequency to external stimuli. This makes them interesting model systems to study the effec…
Improved spectral stability in spin transfer nano-oscillators: single vortex versus coupled vortices dynamics
Nicolas Locatelli, Romain Lebrun, Vladimir V. Naletov +5
We perform a comparative study of spin transfer induced excitation of the gyrotropic motion of a vortex core with either uniform or vortex spin polarizers. The microwave output vol…
Electronic control of the spin-wave damping in a magnetic insulator
A. Hamadeh, O. d Allivy Kelly, C. Hahn +12
It is demonstrated that the decay time of spin-wave modes existing in a magnetic insulator can be reduced or enhanced by injecting an in-plane dc current, , in an adja…
Perfect and robust phase-locking of a spin transfer vortex nano-oscillator to an external microwave source
A. Hamadeh, Nicolas Locatelli, V. V. Naletov +5
We study the synchronization of the auto-oscillation signal generated by the spin transfer driven dynamics of two coupled vortices in a spin-valve nanopillar to an external source.…
Origin of spectral purity and tuning sensitivity in a vortex-based spin transfer nano-oscillator
A. Hamadeh, Grégoire De Loubens, Olivier Klein +5
We investigate the microwave characteristics of a spin transfer nano-oscillator (STNO) based on coupled vortices as a function of the perpendicular magnetic field . While…
Quantitative MRFM characterization of the autonomous and forced dynamics in a spin transfer nano-oscillator
A. Hamadeh, Grégoire De Loubens, V. V. Naletov +4
Using a magnetic resonance force microscope (MRFM), the power emitted by a spin transfer nano-oscillator consisting of a normally magnetized PyCuPy circular nanopillar is mea…