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In confined magnetically ordered structures one can observe vortices ofmagnetization and electromagnetic power flow vortices. There are topologicallydistinct and robust states. In this paper we show that in a normally magnetizedquasi-2D ferrite disk there exist eigen power-flow-density vortices ofmagnetic-dipolar-mode oscillations. Because of such circular power flows, theoscillating modes are characterized by stable magnetostatic energy states anddiscrete angular moments of the wave fields. We show that thepower-flow-density vortices of magnetostatic modes can be excited byelectromagnetic fields of a microwave cavity. There is a clear correspondencebetween the power-flow-density vortex structures in a ferrite disk derived froman analytical solution of the magnetostatic-wave spectral problem and obtainedby the numerical-simulation electromagnetic program.

Eigen power-flow-density vortices of magnetostatic modes in thin ferrite disks