Skyrmion excitations in a magnonic crystal

Collective dynamical skyrmion excitations in a magnonic crystal.

M. Mruczkiewicz, P. Gruszecki, M. Zelent, and M. Krawczyk
Phys. Rev. B 93, 174429 (2016)

Spatial maps of the x, y, and z components of the dynamic magnetization vector δm of (a) the 0.98 GHz clockwise gyrotropic mode, and (b) the 13.24 GHz breathing mode, obtained from FDTD simulations in a 30-nm nanodot under magnetic field Bz=0.1 T. Left and right columns show the absolute value and phase, respectively, of each δm component.