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. […]

Current-driven asymmetric magnetization switching in perpendicularly magnetized CoFeB/MgO heterostructures


Reference: J. Torrejon et al., Phys. Rev. B 91, 214434 (2015). By using analytical theory and micromagnetics simulations, we helped to explain experimental observations of an asymmetry in current-induced magnetization switching in ultrathin CoFeB/MgO films. This work has just appeared in Physical Review B. Last modified 30/06/15

Skyrmion breathing modes


Reference: J.-V. Kim et al., “Breathing modes of confined skyrmions in ultrathin magnetic dots”, Physical Review B 90, 064410 (2014). Our recent study on the breathing modes of magnetic skyrmions in confined dots has just been published in Physical Review B. Last modified 15/08/14

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 […]

Spin-wave channeling in chiral textures


Reference: F. Garcia-Sanchez et al., “Nonreciprocal spin-wave channeling along textures driven by the Dzyaloshinskii-Moriya interaction”, Physical Review B 89, 224408 (2014). Our recent work on the nonreciprocal spin-wave channeling in chiral spin textures has just appeared online in Physical Review B. Last modified 19/06/14