3 papers
cond-mat.other2025
Crossover from Universal Depinning to Free Domain-Wall Dynamics in Ultrathin Iron Garnet Films
V. Jeudy, D. Gouéré, N. Beaulieu +7
Magnetic domain walls display universal, disorder-controlled elastic dynamics at low drive, and texture-governed free motion at high drive. Here, we establish the crossover mechani…
cond-mat.mes-hall2025
Self-modulation instability in high power ferromagnetic resonance of BiYIG nanodisks
Igor Ngouagnia Yemeli, Salvatore Perna, Diane Gouéré +9
We study the high power ferromagnetic resonance (FMR) of perpendicularly magnetized BiYIG nanodisks where the uniaxial anisotropy almost compensates the shape anisotropy. We observ…
cond-mat.mes-hall2024
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…