603 citations · 2.7k across the 47 of their papers we have counts for
27 papers · 1 filter
True amplification of spin waves in magnonic nano-waveguides
Hugo Merbouche, Boris Divinskiy, Diane Gouéré +7
Magnonic nano-devices exploit magnons -- quanta of spin waves -- to transmit and process information within a single integrated platform that has the potential to outperform tradit…
Antiferromagnetic magnon spintronic based on non-reciprocal and non-degenerated ultra-fast spin-waves in the canted antiferromagnet α-Fe2O3
A. El Kanj, O. Gomonay, I. Boventer +4
Spin-waves in antiferromagnets hold the prospects for the development of faster, less power-hungry electronics, as well as promising physics based on spin-superfluids and coherent…
Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin-phonon interactions
E. Rongione, O. Gueckstock, M. Mattern +17
Antiferromagnetic materials have been proposed as new types of narrowband THz spintronic devices owing to their ultrafast spin dynamics. Manipulating coherently their spin dynamics…
Antiferromagnetic cavity magnon polaritons in collinear and canted phases of hematite
I. Boventer, H. T. Simensen, B. Brekke +5
Cavity spintronics explores light matter interactions at the interface between spintronic and quantum phenomena. Until now, studies have focused on the hybridization between ferrom…
Evidence for spin current driven Bose-Einstein condensation of magnons
B. Divinskiy, H. Merbouche, V. E. Demidov +9
The quanta of magnetic excitations - magnons - are known for their unique ability to undergo Bose-Einstein condensation at room temperature. This fascinating phenomenon reveals its…
Size-dependent enhancement of passive microwave rectification in magnetic tunnel junctions with perpendicular magnetic anisotropy
A. Sidi El Valli, V. Iurchuk, G. Lezier +11
Spintronic rf detectors were demonstrated, recently, for energy harvesting and wireless communication at low input power. Here we report on the optimization of the rectified output…
Dispersionless propagation of ultra-short spin-wave pulses in ultrathin yttrium iron garnet waveguides
B. Divinskiy, H. Merbouche, K. O. Nikolaev +10
We study experimentally the propagation of nanosecond spin-wave pulses in microscopic waveguides made of nanometer-thick yttrium iron garnet films. For these studies, we use micro-…
Non-hermiticity in spintronics: oscillation death in coupled spintronic nano-oscillators through emerging exceptional points
Steffen Wittrock, Salvatore Perna, Romain Lebrun +6
The emergence of exceptional points (EPs) in the parameter space of a non-hermitian (2D) eigenvalue problem is studied in a general sense in mathematical physics, and has in the la…
Voltage-Controlled Reconfigurable Magnonic Crystal at the Submicron Scale
Hugo Merbouche, Isabella Boventer, Victor Haspot +11
Multiferroics offer an elegant means to implement voltage-control and on the fly reconfigurability in microscopic, nanoscaled systems based on ferromagnetic materials. These proper…
Flicker and random telegraph noise between gyrotropic and dynamic C-state of a vortex based spin torque nano oscillator
Steffen Wittrock, Philippe Talatchian, Miguel Romera +8
Vortex based spin torque nano oscillators (STVOs) can present more complex dynamics than the spin torque induced gyrotropic (G) motion of the vortex core. The respective dynamic mo…
Room temperature antiferromagnetic resonance and inverse spin-Hall voltage in canted antiferromagnets
I. Boventer, H. T. Simensen, A. Anane +3
We study theoretically and experimentally the spin pumping signals induced by the resonance of canted antiferromagnets with Dzyaloshinskii-Moriya interaction and demonstrate that t…
Spin-torque Dynamics for Noise Reduction in Vortex-based Sensors
Mafalda Jotta Garcia, Julien Moulin, Steffen Wittrock +12
Performance of magnetoresistive sensors is today mainly limited by their 1/f low-frequency noise. Here, we study this noise component in vortex-based TMR sensors. We compare the no…
An insulating doped antiferromagnet with low magnetic symmetry as a room temperature spin conduit
Andrew Ross, Romain Lebrun, Lorenzo Baldrati +10
We report room temperature long-distance spin transport of magnons in antiferromagnetic thin film hematite doped with Zn. The additional dopants significantly alter the magnetic an…
Beyond the gyrotropic motion: dynamic C-state in vortex spin torque oscillators
Steffen Wittrock, Philippe Talatchian, Miguel Romera Rabasa +9
In the present study, we investigate a dynamical mode beyond the gyrotropic (G) motion of a magnetic vortex core in a confined magnetic disk of a nano-pillar spin torque nano oscil…
Long-distance spin-transport across the Morin phase transition up to room temperature in ultra-low damping single crystals of the antiferromagnet α-Fe2O3
Romain Lebrun, Andrew Ross, Olena Gomonay +7
Antiferromagnetic materials can host spin-waves with polarizations ranging from circular to linear depending on their magnetic anisotropies. Until now, only easy-axis anisotropy an…
Concurrent magneto-optical imaging and magneto-transport readout of electrical switching of insulating antiferromagnetic thin films
Felix Schreiber, Lorenzo Baldrati, Christin Schmitt +4
We demonstrate stable and reversible current induced switching of large-area () antiferromagnetic domains in NiO/Pt by performing concurrent transport and magneto-opti…
Control of the Coupling Strength and the Linewidth of a Cavity-Magnon Polariton
Isabella Boventer, Christine Dörflinger, Tim Wolz +4
The full coherent control of hybridized systems such as strongly coupled cavity photon-magnon states is a crucial step to enable future information processing technologies. Thus, i…
Anisotropies and magnetic phase transitions in insulating antiferromagnets determined by a Spin-Hall magnetoresistance probe
Romain Lebrun, Andrew Ross, Olena Gomonay +8
We demonstrate that we can determine the antiferromagnetic anisotropies and the bulk Dzyaloshinskii-Moriya fields of the insulating iron oxide hematite, α-Fe2O3, using a surface se…
Electrically controlled long-distance spin transport through an antiferromagnetic insulator
R. Lebrun, A. Ross, S. A. Bender +6
Spintronics uses spins, the intrinsic angular momentum of electrons, as an alternative for the electron charge. Its long-term goal is in the development of beyond-Moore low dissipa…
Mutual synchronization of spin torque nano-oscillators through a non-local and tunable electrical coupling
R. Lebrun, S. Tsunegi, P. Bortolotti +8
The concept of spin torque driven high frequency magnetization dynamics has opened up the field of spintronics to non-linear physics, potentially in complex networks of dynamical s…
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…
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…
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…