Microwave whirlpools in a rectangular-waveguide cavity with a thin ferrite disk
arXiv:0707.1236 · doi:10.1103/PhysRevE.74.036620
Abstract
We study a three dimensional system of a rectangular-waveguide resonator with an inserted thin ferrite disk. The interplay of reflection and transmission at the disk interfaces together with material gyrotropy effect, gives rise to a rich variety of wave phenomena. We analyze the wave propagation based on full Maxwell-equation numerical solutions of the problem. We show that the power-flow lines of the microwave-cavity field interacting with a ferrite disk, in the proximity of its ferromagnetic resonance, form whirlpool-like electromagnetic vortices. Such vortices are characterized by the dynamical symmetry breaking. The role of ohmic losses in waveguide walls and dielectric and magnetic losses in a disk is a subject of our investigations.
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Cited by in corpus (5)
- Vortices and chirality of magnetostatic modes in quasi-2D ferrite disk particles
- Coupled states of electromagnetic fields with magnetic-dipolar-mode vortices: MDM-vortex polaritons
- Magnetic-dipolar-mode Fano resonances for microwave spectroscopy of high absorption matter
- Unidirectional magnetoelectric-field multiresonant tunneling
- Effective chiral magnetic currents, topological magnetic charges, and microwave vortices in a cavity with an enclosed ferrite disk