Strong dynamic magnetoelectric coupling in metamaterial

Magnetoelectric susceptibility (ξ) of classical magnetoelectrics is always substantially smaller that the geometric average of the electric ([χ.sub.e]) and magnetic ([χ.sub.m]) susceptibilities. Materials reaching the equality [ξ.sup.2] = [χ.sub.e][χ.sub.m] as a limiting value may thus be considered...

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Bibliographic Details
Published in:The European physical journal. B, Condensed matter physics Condensed matter physics, 2011-01, Vol.79 (2), p.163
Main Authors: Shuvaev, A.M, Engelbrecht, S, Wunderlich, M, Schneider, A, Pimenov, A
Format: Article
Language:English
Online Access:Get full text
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Summary:Magnetoelectric susceptibility (ξ) of classical magnetoelectrics is always substantially smaller that the geometric average of the electric ([χ.sub.e]) and magnetic ([χ.sub.m]) susceptibilities. Materials reaching the equality [ξ.sup.2] = [χ.sub.e][χ.sub.m] as a limiting value may thus be considered as ideal magnetoelectrics. Here we investigate the magnetoelectric susceptibility of a metamaterial built from split ring resonators both experimentally and within an equivalent circuit model. Due to a direct proportionality between electric polarization and magnetization, the magnetoelectric susceptibility of this metamaterial fulfils the equality [ξ.sup.2] = [χ.sub.e][χ.sub.m] at least in the dynamic regime.
ISSN:1434-6028
1434-6036
DOI:10.1140/epjb/e2010-10493-l