Hybridization of electric and magnetic responses in the effective axion background

Seidov, Timur Z.; Gorlach, Maxim A.

doi:10.1103/physreva.108.053515

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…By adjusting its meta-atom geometry and constituent materials we are potentially able to tune its resonant wavelength within the optical range. Moreover, the possibility of structuring the metamaterial (making it nonuniform in space and/or time) has important implications for generating and analyzing the effective nonuniform axion field 40 , 41 and related effects 37 , 43 , 66 – 68 . Nonuniformity in the axion field is essential since this field enters into the Maxwell equations only through derivatives with respect to time or space 69 .…”

Section: Resultsmentioning

confidence: 99%

Optical Tellegen metamaterial with spontaneous magnetization

Safaei Jazi,

Faniayeu,

Cichelero

et al. 2024

Nat Commun

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The nonreciprocal magnetoelectric effect, also known as the Tellegen effect, promises a number of groundbreaking phenomena connected to fundamental (e.g., electrodynamics of axion and relativistic matter) and applied physics (e.g., magnetless isolators). We propose a three-dimensional metamaterial with an isotropic and resonant Tellegen response in the visible frequency range. The metamaterial is formed by randomly oriented bi-material nanocylinders in a host medium. Each nanocylinder consists of a ferromagnet in a single-domain magnetic state and a high-permittivity dielectric operating near the magnetic Mie-type resonance. The proposed metamaterial requires no external magnetic bias and operates on the spontaneous magnetization of the nanocylinders. By leveraging the emerging magnetic Weyl semimetals, we further show how a giant bulk effective magnetoelectric effect can be achieved in a proposed metamaterial, exceeding that of natural materials by almost four orders of magnitude.

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