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FM: Fachverband Funktionsmaterialien
FM 8: Multiferroics and Magnetoelectric Coupling (joint session MA/FM)
FM 8.11: Vortrag
Dienstag, 10. März 2026, 12:15–12:30, POT/0112
Spectroscopy of coupled magnetic and electric resonances — •Dávid Szaller1,2, Artem M Kuzmenko3, Alexander A Mukhin3, Alexey Shuvaev2, and Andrei Pimenov2 — 1HUN-REN-BME Condensed Matter Physics Research Group, and Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Muegyetem rkp. 3., H-1111 Budapest, Hungary — 2Institute of Solid State Physics, TU Wien, 1040 Vienna, Austria — 3Moscow, Russia
Controllable non-reciprocal propagation of light is an intensively investigated field of optics, with studies motivated both by fundamental questions and possible telecommunication applications. So far, polarization-independent, switchable one-way transparency has been demonstrated at certain resonances of multiferroic crystals at cryogenic temperatures and in high magnetic fields, limiting the practical implementation. As an alternative approach, we present one-way transparency of an artificial layered structure consisting of split-ring metamaterial and magnetic substrate layers interacting in the dynamic regime [1]. Our quasi-optical experiments in the GHz frequency range show that this unique combination breaks time and space inversion symmetries in external magnetic field. The ease of tuning the dynamic response and the controllable one-way transparency make this approach promising for real-world applications.
[1] A. M. Kuzmenko et al., Phys. Rev. B 112, 134434 (2025).
Keywords: one-way transparency; non-reciprocal; magnetoelectric