New nonlinear magnetostatic surface waves in a ferromagnetic (YIG)

Abstract

The general propagation characteristics of magnetostatic surface waves guided by a single interface of a semi-infinite nonlinear dielectric cover and a ferromagnetic substrate (YIG) have been derived. The nonlinear dielectric cover has intensity dependent refractive indices. The magnetostatic approximation is considered and retardation is ignored in describing the electromagnetic fields in the structure. The used magnetostatic approximation is leading to new waves and might be called nonlinear magnetostatic surface waves. The propagation of these waves is non-reciprocal in contrast to the linear magnetostaic surface waves, which had been only found in the negative direction of propagation.

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Shabat, M.M. New nonlinear magnetostatic surface waves in a ferromagnetic (YIG). Int J Infrared Milli Waves 15, 1651–1662 (1994). https://doi.org/10.1007/BF02096892

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Keywords

  • Refractive Index
  • Propagation Characteristic
  • Electromagnetic Field
  • Surface Wave
  • Negative Direction