Maryam Massouras

Multiple three-magnon splittings in bismuth yttrium iron garnet nanostructures

Sali Salama, Joo-Von Kim, Maryam Massouras, Jamal Ben Youssef et autres

We experimentally demonstrate the generation of multiple three-magnon splitting processes in an in-plane magnetized submicron Bi-YIG disk using micro-focused Brillouin light scattering. The low magnetic damping and strong magneto-optical response of BiYIG enable the detection of nonlinear spin-wave interactions at low threshold …

Multiple three-magnon splittings in bismuth yttrium iron garnet nanostructures

Sali Salama, Joo-Von Kim, Maryam Massouras, Jamal Ben Youssef et autres

We experimentally demonstrate the generation of multiple three-magnon splitting processes in an in-plane magnetized submicron Bi-YIG disk using micro-focused Brillouin light scattering. The low magnetic damping and strong magneto-optical response of BiYIG enable the detection of nonlinear spin-wave interactions at low threshold …

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Nonlinear mode interactions under parametric excitation in a YIG microdisk

Gabriel Soares, Rafael Lopes Seeger, Amel Kolli, Maryam Massouras et autres

A pair of quantized spin-wave modes is driven by two-tone parallel pumping in a YIG microdisk. The nonlinear dynamics is experimentally investigated by probing the resulting steady state, which is found to critically depend on the chosen pair of modes, the detuning …

Nonlinear mode interactions under parametric excitation in a YIG microdisk

Gabriel Soares, Rafael Lopes Seeger, Amel Kolli, Maryam Massouras et autres

A pair of quantized spin-wave modes is driven by two-tone parallel pumping in a YIG microdisk. The nonlinear dynamics is experimentally investigated by probing the resulting steady state, which is found to critically depend on the chosen pair of modes, the detuning …

Mode-resolved micromagnetics study of parametric spin wave excitation in thin-film disks

Maryam Massouras, Salvatore Perna, Massimiliano d’Aquino, C. Serpico et autres

We present a computational study of the parametric excitation of spin waves in thin-film disks with a mode-resolved approach. The method involves projecting out the time-dependent magnetization, computed using micromagnetics simulations, onto the spatial profile of the eigenmodes that are obtained from …

fr, it (code pays fourni par la source)

Mode-resolved micromagnetics study of parametric spin wave excitation in thin-film disks

Maryam Massouras, Salvatore Perna, Massimiliano d’Aquino, C. Serpico et autres

We present a computational study of the parametric excitation of spin waves in thin film disks with a mode-resolved approach. The method involves projecting out the time-dependent magnetization, computed using micromagnetics simulations, onto the spatial profile of the eigenmodes that are obtained …

fr, it (code pays fourni par la source)

Design of k-space Magnon Dynamics by Machine Learning

György Csaba, Ádám Papp, András Horváth, Joo-Von Kim et autres

We demonstrate the application of machnine learning techniques to the design of magnonic neuromorphic devices. Specifically, we show that these techniques are applicable not only to inverse-design propagating waves but to engineer the modal dynamics of nanomagnets in such a way that …

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Magneto‐Ionics in Annealed W/CoFeB/HfO2 Thin Films

Rohit Pachat, Djoudi Ourdani, Maria‐Andromachi Syskaki, Alessio Lamperti et autres

Abstract The magneto‐ionic modulation of the Dzyaloshinskii–Moriya interaction (DMI) and the perpendicular magnetic anisotropy (PMA), in W/CoFeB/HfO2 stacks annealed at different temperatures and for varying annealing times, are presented in this work. A large modulation of PMA and DMI is observed in …

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Tuneable stochastic domain-wall trajectories in a nanoscale magnetic Galton board

Dédalo Sanz‐Hernández, Maryam Massouras, Nicolas Reyren, Nicolas Rougemaille et autres

In this work , we describe the design, realisation and characterization of the magnetic version of the Galton Board, an archetypal statistical device originally designed to exemplify normal distributions. Although simple in its macroscopic form, achieving an equivalent nanoscale system poses many …

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Tunable Stochasticity in an Artificial Spin Network

Dédalo Sanz‐Hernández, Maryam Massouras, Nicolas Reyren, Nicolas Rougemaille et autres

Metamaterials present the possibility of artificially generating advanced functionalities through engineering of their internal structure. Artificial spin networks, in which a large number of nanoscale magnetic elements are coupled together, are promising metamaterial candidates that enable the control of collective magnetic behavior …

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Artificial spin ice : from statistical physics to stochastic computing

Maryam Massouras

Since their introduction in 2006, artificial spin ice systems have sparked an interest for their similarity with frustrated systems such as water ice or some pyrochlores. These networks of interacting nanomagnets can be observed using simple microscopy techniques and be tailored at …

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Artificial spin ice : from statistical physics to stochastic computing

Maryam Massouras

Spins artificiels : de la physique statistique au calcul stochastique Depuis leur introduction en 2006, les systèmes de spins artificiels ont suscité un large intérêt autant pour leur similarité avec des systèmes frustrés tels que la glace d'eau ou certains pyrochlores. Ces …

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