2008/04/10 by M. Sigalov, Sigalov, M., E. O. Kamenetskii +3
Engineering · Materials Science · Physics and Astronomy · #Electromagnetic Effects on Materials #FOS: Physical sciences #Magnetic Properties and Applications #Magnetic properties of thin films #Materials Science (cond-mat.mtrl-sci) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.0804.1666
arxiv created 2008/04/10 · openalex publication_date 2008/04/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In confined magnetically ordered structures one can observe vortices of magnetization and electromagnetic power flow vortices. There are topologically distinct and robust states. In this paper we show that in a normally magnetized quasi-2D ferrite disk there exist eigen power-flow-density vortices of magnetic-dipolar-mode oscillations. Because of such circular power flows, the oscillating modes are characterized by stable magnetostatic energy states and discrete angular moments of the wave fields. We show that the power-flow-density vortices of magnetostatic modes can be excited by electromagnetic fields of a microwave cavity. There is a clear correspondence between the power-flow-density vortex structures in a ferrite disk derived from an analytical solution of the magnetostatic-wave spectral problem and obtained by the numerical-simulation electromagnetic program.