Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
OPTICAL MAGNETOELECTRIC EFFECT IN THE POLAR HONEYCOMB ANTIFERROMAGNET FE2MO3 O8
Form of presentationArticles in international journals and collections
Year of publication2024
Языканглийский
  • Eremin Mikhail Vasilevich, author
  • Vasin Kirill Valerevich, postgraduate kfu
  • Nurmukhametov Aleksey Ruslanovich, postgraduate kfu
  • Bibliographic description in the original language Vasin K.V, Strini A, Schilberth F, Optical magnetoelectric effect in the polar honeycomb antiferromagnet Fe2Mo3 O8//Physical Review B. - 2024. - Vol.110, Is.5. - Art. №054401.
    Annotation The lack of both time-reversal and spatial inversion symmetry in polar magnets is a prerequisite for the occurrence of optical magnetoelectric effects such as nonreciprocal directional dichroism, i.e., a difference in refractive index and absorption for two counter-propagating electromagnetic waves, which has the potential for the realization of optical diodes. In particular, antiferromagnetic materials with magnetic excitations in the THz range such as Fe2Mo3O8 are promising candidates for next-generation spintronic applications. In a combined experimental and theoretical effort we investigated the THz excitations of the polar honeycomb antiferromagnet Fe2Mo3O8 in external magnetic fields and their nonreciprocal directional dichroism, together with the temperature dependence of the electronic transitions in the mid- and near-infrared frequency range. Using an advanced single-ion approach for the Fe ions, we are able to describe optical excitations from the THz to the near-infrared frequency range quantitatively and model the observed nonreciprocal directional dichroism in the THz regime successfully.
    Keywords Fe2Mo3O8, magnetoelectric effect, THz regime
    The name of the journal PHYSICAL REVIEW B
    URL https://journals.aps.org/prb/abstract/10.1103/PhysRevB.110.054401
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=303564&p_lang=2

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