Role of nonlinear anisotropic damping in the magnetization dynamics of topological solitons

Reference: J.-V. Kim, Phys. Rev. B 92, 014418 (2015). By including the Rashba interaction into a model for nonlinear feedback damping, I studied how the dynamics of magnetic solitons, such as domain walls, vortices, and skyrmions, might be affected by additional torques resulting from this damping. This work has just appeared in Physical Review B. […]

Narrow Magnonic Waveguides Based on Domain Walls

Reference: F. Garcia-Sanchez et al., Phys. Rev. Lett. 114, 247206 (2015). By using spin wave theory and micromagnetics simulations, we have shown that localized eigenmodes of magnetic domain walls can act as efficient waveguides for spin waves in ultrathin films. This work has just appeared in Physical Review Letters. Last modified 23/06/15

Diamonds provide relief to magnetic landscapes

Reference: J.-P. Tetienne et al., “Nanoscale imaging and control of domain-wall hopping with a nitrogen-vacancy center microscope”, Science 334, 1366-1369 (2014). Are diamonds a physicist’s best friend? Using specially engineered diamonds, scientists at the École Normale Supérieure de Cachan in France, in collaboration with researchers at the French National Center for Scientific Research (CNRS) and […]