10 citations · 12 across the 8 of their papers we have counts for
8 papers
Near-zero effective magnetization enabling ultra-low threshold currents in spin Hall micro-oscillators
A. Koujok, H. Kurebayashi, K. Yamamoto +6
Reducing the electrical current required to excite magnetization dynamics is a central challenge, e.g. for energy-efficient magnonic devices or oscillator-based computing. Spin Hal…
Spin-wave emission with current-controlled frequency by a PMA-based spin-Hall oscillator
Moritz Bechberger, David Breitbach, Abbas Koujok +4
Spin-torque and spin-Hall oscillators (SHOs) have emerged as promising candidates for building blocks in neuromorphic computing due to their ability to synchronize mutually, a proc…
Hybrid magnonic spintronic system for tunable broadband signal filtering and microwave generation
A. Koujok, A. Hamadeh, L. Martins +4
Non-conventional beyond-the-state-of-the-art signal processing schemes require parallelism, scalability, robustness and energy efficiency to meet the demands of complex data-driven…
Diverse dynamics in interacting vortices systems through tunable conservative and non-conservative coupling strengths
A. Hamadeh, A. Koujok, D. R. Rodrigues +6
Magnetic vortices are highly tunable, nonlinear systems with ideal properties for being applied in spin wave emission, data storage, and neuromorphic computing. However, their tech…
Injection locking in DC-driven spintronic vortex oscillators via surface acoustic wave modulation
R. Moukhader, D. R. Rodrigues, A. Riveros +4
Control of the microwave signal generated by spin-transfer torque oscillators (STOs) is crucial for their applications in spin wave generation and neuromorphic computing. This stud…
Resonant excitation of vortex gyrotropic mode via surface acoustic waves
A. Koujok, A. Riveros, D. R. Rodrigues +4
Finding new energy-efficient methods for exciting magnetization dynamics is one of the key challenges in magnonics. In this work, we present an approach to excite the gyrotropic dy…
Hybrid Magnonic-Oscillator System
A. Hamadeh, D. Breitbach, M. Ender +6
We propose a hybrid magnonic-oscillator system based on the combination of a spin transfer auto-oscillator and a magnonic waveguide to open new perspectives for spin-wave based cir…
The role of damping rate amplitude in the synchronization of two coupled oscillators
A. Hamadeh, A. Koujok, I. Medlej +2
We investigate the synchronization phenomenon between two Spin-transfer Torque Nano-Oscillators (STNOs) of different frequencies in two pillar systems under vortex configuration de…