NDLI: Electromagnonic crystals based on ferrite–ferroelectric

Content Provider	IET Digital Library
Author	Nikitin, Aleksei A. Nikitin, Andrey A. Mylnikov, Ivan L. Ustinov, Alexey B. Kalinikos, Boris A.
Abstract	In recent years, the microwave processes in artificial multiferroic media such as electromagnonic crystals have attracted increased research interest due to their potential applications for voltage-controlled spintronic devices. In contrast to the conventional magnonic crystals, the artificially created periodic structures are characterised by electrically and magnetically tunable band gaps in the wave spectrum where the propagation of the electromagnons is forbidden. In this study, an experimental realisation of an electromagnonic crystal based on a ferrite–ferroelectric–ferrite multilayer has been proposed. The authors have demonstrated for the first time a band-gap splitting, which arises from an interaction of three fundamental modes of two ferrite films separated by a ferroelectric layer. This splitting manifested itself as an additional stop-band appearance in the frequency response of the electromagnonic crystal. The obtained band structures are confirmed by numerical modelling using the coupled-mode approach and the transfer-matrix method. The authors expect that their results allow exploiting the electromagnonic crystal for enhanced logic control as well as for tunable microwave devices.
Starting Page	1304
Ending Page	1309
Page Count	6
ISSN	17518725
Volume Number	14
e-ISSN	17518733
Issue Number	Issue 12, Oct (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/14/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2020.0162
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2020-06-22
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Artificial Multiferroic Media Artificially Created Periodic Structures Conventional Magnonic Crystals Dielectric Thin Films Electrically Band Gaps Electromagnonic Crystal Energy Gap Ferrimagnetics Ferrite Film Ferrites Ferrite–ferroelectric–ferrite Multilayer Ferroelectric Thin Film Interface State Magnetic MultiLayer Magnetic Property of MonoLayer And OverLayer Magnetic Thin Film Magnetically Tunable Band Gaps Magnetism in Interface Structure Magnetomechanical And Magnetoelectric Effect, Magnetostriction Magnons Multiferroics Periodic Structure Spin Wave in Magnetically Ordered Material Surface State Density
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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