Demultiplexing of spin-waves in the structure ferromagnetic film|ferroelectric|magnonic crystal
Morozova M. A. 1, Matveyev O. V.1, Sharaevsky Yu. P.1, Nikitov S. A.1,2
1Saratov State University, Saratov, Russia
2Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, Russia
Email: mamorozovama@yandex.ru
The article covers the principle of multiplexing/demultiplexing of microwave signals based on the structure ferromagnetic film|ferroelectric|magnonic crystal. The formation of five band gaps, i. e. spin-wave stopbands, has been found in such a structure. It is shown that, the signal exits through different ports of the structure depending on the frequency, i. e. channels are frequency-separated. The frequency range supplied to this port is determined by the dielectric permittivity of the ferroelectric layer (which is determined by the applied electric field) and the magnitude of the magnetic field applied to the ferromagnetic layers. Keywords: magnonics, multiferroics, frequency separation of channels, spin current.
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