This article is cited in 5 papers

Fast and slow electromagnetic waves in a longitudinally magnetized thin-film ferromagnetic metamaterial

M. D. Amel'chenko, S. V. Grishin, Yu. P. Sharaevsky

Saratov State University

Abstract: The results of a theoretical study of the electrodynamic characteristics of fast and slow electromagnetic waves (EMWs) propagating in a metamaterial are presented. The metamaterial consists of a ferromagnetic film inside which a periodic lattice of thin metal wires is located. It has been established that the ferromagnetic thin-film metamaterial possesses the properties of a left-handed medium at frequencies of slow electromagnetic waves. It is shown that, in a ferromagnetic metamaterial, compared with a conventional ferromagnetic film, the cutoff frequencies of fast and slow EMWs shift to a higher frequency range, and EMWs themselves become strongly slowed waves.

Keywords: metamaterials, left-handed medium, backward wave, ferromagnet, spin waves.

Received: 08.04.2019
Revised: 08.04.2019
Accepted: 26.08.2019

DOI: 10.21883/PJTF.2019.23.48712.17830

 English version: Technical Physics Letters, 2019, 45:12, 1182–1186

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