Regensburg 2019 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 20: Multiferroics and Magnetoelectric coupling I (joint session MA/KFM)
MA 20.4: Vortrag
Dienstag, 2. April 2019, 15:00–15:15, H37
Switchable one-way transparency via coupled magnetic and electric resonances — •David Szaller1, Artem Kuz'menko2, Alexander A. Mukhin2, Alexey Shuvaev1, Urmas Nagel3, Toomas Rõõm3, and Andrei Pimenov1 — 1Institute of Solid State Physics, TU Wien, Vienna, Austria — 2Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Russia — 3National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
The strong anisotropy in the absorption of counter-propagating light beams approaching the limit of one-way transparency[1] became an intensively studied topic of simultaneously magnetic and polar (i.e. multiferroic) crystals, motivated by both the fundamentals of non-reciprocity and the possible information-technology applications. However, due to the limited understanding of the phenomenon the design of one-way transparent devices with specified optical spectrum is still an open task. On the basis of symmetry analysis and statistical physical considerations[2], it is possible to construct a minimal model of one-way transparency consisting of a pair of coupled magnetic and electric resonances. This model can be realized in certain multiferroic crystals and also in metamaterial structures, opening the path to custom-designed, electrically[3] or magnetically[1] switchable optical response.
[1] I. Kézsmárki, D. Szaller et al., Nat. Commun. 5, 3203 (2014)
[2] D. Szaller et al., PRB 87, 014421 (2013) and PRB 89, 184419 (2014)
[3] A. M. Kuz'menko, D. Szaller et al., PRL 120, 027203 (2018)