Ferromagnet/Superconductor Hybrid Magnonic Metamaterials.

ABSTRACT: In this work, a class of metamaterials is proposed on the basis of ferromagnet/superconductor hybridization for applications in magnonics. These metamaterials comprise of a ferromagnetic magnon medium that is coupled inductively to a superconducting periodic microstructure. Spectroscopy of magnetization dynamics in such hybrid evidences formation of areas in the medium with alternating dispersions for spin wave propagation, which is the basic requirement for the development of metamaterials known as magnonic crystals. The spectrum allows for derivation of the impact of the superconducting structure on the dispersion: it takes place due to a diamagnetic response of superconductors on the external and stray magnetic fields. In addition, the spectrum displays a dependence on the superconducti

SUBMITTER: Golovchanskiy IA 

PROVIDER: S-EPMC6702653 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature