Abstract
We propose a novel active magneto-chiral system consisting of a separated Au/Co multilayer with perpendicular magnetic anisotropy and plasmonic chiral oligomers. The electromagnetic interaction between the Au/Co multilayer and chiral building blocks, which is governed by their separation distance, plays a relevant role in the control of both magneto-optical and chiral activity, resulting in a strong effect on the chiro-optical response. Due to the interaction-induced detuning of the disk resonances in the oligomers, the chiro-optical activity decreases with increasing interaction strength. The possibility to tune both magneto- and chiro-optical properties of the system by controlling the interaction strength opens the door for the fabrication of magneto-chiral systems in a wide spectral range, which is determined by both constituting magnetic and chiral components, as well as their electromagnetic interaction.
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