Abstract
Circular dichroism, which changes sign under magnetization reversal and exhibits a 120° periodicity, is observed in the reflection of light from the (111) plane of a noncentrosymmetric LiFe5O8 crystal in the transverse geometry k⊥M, where the linear Kerr effect is forbidden. It is shown that this phenomenon is due to the manifestation of optical magnetoelectric susceptibility and a Kerr effect of third order in the magnetization. The spectral dependences of the circular dichroism in the range 1.4–3.1 eV show that this phenomenon is of a resonance character.
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Pis’ma Zh. Éksp. Teor. Fiz. 65, No. 1, 65–70 (10 January 1997)
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Gridnev, V.N., Krichevtsov, B.B., Pavlov, V.V. et al. Magnetization-odd nonreciprocal reflection of light from the magnetoelectric—ferromagnet LiFe5O8 . Jetp Lett. 65, 68–73 (1997). https://doi.org/10.1134/1.567327
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DOI: https://doi.org/10.1134/1.567327