Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Araujo, Flávio"'
Autor:
Gomes, Tristan da Câmara Santa Clara, Marchal, Nicolas, Medina, Joaquín de la Torre, Araujo, Flavio Abreu, Piraux, Luc
Publikováno v:
Applied Physics Letters 124, 092406 (2024)
Macroscopic-scale nanostructures, situated at the interface of nanostructures and bulk materials, hold significant promise in the realm of thermoelectric materials. Nanostructuring presents a compelling avenue for enhancing material thermoelectric pe
Externí odkaz:
http://arxiv.org/abs/2312.14627
Autor:
Gomes, Tristan da Câmara Santa Clara, Marchal, Nicolas, Moureaux, Anatole, de Wergifosse, Simon, Chopin, Chloé, Piraux, Luc, Medina, Joaquín de la Torre, Araujo, Flavio Abreu
Publikováno v:
Physical Review Research 6, 023211 (2024)
Three-dimensional interconnected nanowire networks have recently attracted notable attention for the fabrication of new devices for energy harvesting/storage, sensing, catalysis, magnetic and spintronic applications and for the design of new hardware
Externí odkaz:
http://arxiv.org/abs/2401.06158
Micromagnetic simulations are used to study a spin-torque vortex oscillator excited by an out-of-plane dc current. The vortex core gyration amplitude is confined between two orbits due to periodical vortex core polarity reversals. The upper limit cor
Externí odkaz:
http://arxiv.org/abs/2312.02800
Autor:
Moureaux, Anatole, Chopin, Chloé, de Wergifosse, Simon, Jacques, Laurent, Araujo, Flavio Abreu
We present a demonstration of image classification using an echo-state network (ESN) relying on a single simulated spintronic nanostructure known as the vortex-based spin-torque oscillator (STVO) delayed in time. We employ an ultrafast data-driven si
Externí odkaz:
http://arxiv.org/abs/2308.05810
In this study, we developed a quantitative description of the dynamics of spin-torque vortex nano-oscillators (STVOs) through an unconventional model based on the combination of the Thiele equation approach (TEA) and data from micromagnetic simulatio
Externí odkaz:
http://arxiv.org/abs/2307.09262
Autor:
Chopin, Chloé, Martins, Leandro, Benetti, Luana, de Wergifosse, Simon, Jenkins, Alex, Ferreira, Ricardo, Araujo, Flavio Abreu
The spin-diode effect is studied both experimentally and with our original semi-analytical method. The latter is based on an improved version of the Thiele equation approach (TEA) that we combine to micromagnetic simulation data to accurately model t
Externí odkaz:
http://arxiv.org/abs/2301.11980
We design a neural network based on a single spin-torque vortex nano-oscillator (STVO) multiplexed in time. The behavior of the STVO is simulated with an improved ultra-fast and quantitative model based on the Thiele equation approach. Different math
Externí odkaz:
http://arxiv.org/abs/2301.11025
Autor:
Chopin, Chloé, De Wergifosse, Simon, Marchal, Nicolas, Van Velthem, Pascal, Piraux, Luc, Araujo, Flavio Abreu
Due to their memristive properties nanowire networks are very promising for neuromorphic computing applications. Indeed, the resistance of such systems can evolve with the input voltage or current as it confers a synaptic behaviour to the device. Her
Externí odkaz:
http://arxiv.org/abs/2207.06338
The dynamics of vortex based spin-torque nano-oscillators is investigated theoretically. Starting from a fully analytical model based on the Thiele equation approach, fine-tuned data-driven corrections are carried out to the gyrotropic and damping te
Externí odkaz:
http://arxiv.org/abs/2206.13596
Understanding the dynamics of magnetic vortices has emerged as an important challenge regarding the recent development of spin-torque vortex oscillators. Either micromagnetic simulations or the analytical Thiele equation approach are typically used t
Externí odkaz:
http://arxiv.org/abs/2206.13438