It is shown that in a lossless and in-plane saturated ferromagnetic film the dynamic permeability is negative for frequencies corresponding to the backward volume spin waves. The electromagnetic radiation can be coupled to that of backward spin waves and the ferromagnetic film behaves as a magnetic metamaterial with negative permeability.
Dynamic Negative Permeability in a Lossless Ferromagnetic Medium - Presentazione poster by R. Zivieri
ZIVIERI, Roberto
2015
Abstract
It is shown that in a lossless and in-plane saturated ferromagnetic film the dynamic permeability is negative for frequencies corresponding to the backward volume spin waves. The electromagnetic radiation can be coupled to that of backward spin waves and the ferromagnetic film behaves as a magnetic metamaterial with negative permeability.File in questo prodotto:
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