Abstract
The magnetotrans mittance and magnetoreflectance of manganite films and one-dimensional magnetophotonic crystals containing a manganite film as a defect are calculated. The calculations demonstrate that the magnetotransmittance and magnetoreflectance of manganites with a colossal magnetoresistance can be treated as a manifestation of the magnetorefractive effect. The magnitude of the magnetorefractive effect in transmission can reach 20–40% at low temperatures. The effect in reflection amounts to 1–2% for a 300-nm-thick film and can be substantially amplified through multibeam interference in the symmetric and antisymmetric structures of magnetophotonic crystals with a built-in defect.
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Original Russian Text © A.N. Yurasov, Yu.V. Boriskina, E.A. Gan’shina, A.B. Granovsky, Yu.P. Sukhorukov, 2007, published in Fizika Tverdogo Tela, 2007, Vol. 49, No. 6, pp. 1066–1069.