306 citations · 1.2k across the 13 of their papers we have counts for
9 papers · 1 filter
Interplay of voltage control of magnetic anisotropy, spin transfer torque, and heat in the spin-orbit torque switching in three-terminal magnetic tunnel junctions
Viola Krizakova, Eva Grimaldi, Kevin Garello +4
We use three-terminal magnetic tunnel junctions (MTJs) designed for field-free switching by spin-orbit torques (SOTs) to systematically study the impact of dual voltage pulses on t…
Real-time Hall-effect detection of current-induced magnetization dynamics in ferrimagnets
G. Sala, V. Krizakova, E. Grimaldi +3
Measurements of the transverse Hall resistance are widely used to investigate electron transport, magnetization phenomena, and topological quantum states. Owing to the difficulty o…
Field-free switching of magnetic tunnel junctions driven by spin-orbit torques at sub-ns timescales
Viola Krizakova, Kevin Garello, Eva Grimaldi +2
We report time-resolved measurements of magnetization switching by spin-orbit torques in the absence of an external magnetic field in perpendicularly magnetized magnetic tunnel jun…
SOT-MRAM 300mm integration for low power and ultrafast embedded memories
K. Garello, F. Yasin, S. Couet +16
We demonstrate for the first time full-scale integration of top-pinned perpendicular MTJ on 300 mm wafer using CMOS-compatible processes for spin-orbit torque (SOT)-MRAM architectu…
Self-injection locking of a vortex spin torque oscillator by delayed feedback
S. Tsunegi, E. Grimaldi, R. Lebrun +8
The self-synchronization of spin torque oscillators is investigated experimentally by re-injecting its radiofrequency (rf) current after a certain delay time. We demonstrate that t…
Spin torque resonant vortex core expulsion for an efficient radio-frequency detection scheme
A. S. Jenkins, R. Lebrun, E. Grimaldi +9
Spin-polarised radio-frequency currents, whose frequency is equal to that of the gyrotropic mode, will cause an excitation of the core of a magnetic vortex confined in a magnetic t…
Understanding of phase noise squeezing under fractional synchronization of non-linear spin transfer vortex oscillator
R. Lebrun, A. Jenkins, A. Dussaux +10
We investigate experimentally the synchronization of a vortex based spin transfer oscillator to an external rf current whose frequency is at multiple integers, as well as half inte…
Response to noise of a spin transfer vortex based nano-oscillator
Eva Grimaldi, Antoine Dussaux, Paolo Bortolotti +7
We investigate experimentally and analytically the impact of thermal noise on the sustained gyrotropic mode of vortex magnetization in spin transfer nano-oscillators and its conseq…
Parallel pumping of magnetic vortex gyrations in spin-torque nano-oscillators
P. Bortolotti, C. Serpico, E. Grimaldi +8
We experimentally demonstrate that large magnetic vortex oscillations can be parametrically excited in a magnetic tunnel junction by the injection of radio-frequency (rf) currents…