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Magnetorefractive effect in manganites |
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| Authors: | A N Yurasov Yu V Boriskina E A Gan’shina A B Granovsky Yu P Sukhorukov |
| Institution: | (1) Moscow State Institute of Radio Engineering, Electronics, and Automation, Technical University, pr. Vernadskogo 78, Moscow, 119454, Russia;(2) Moscow State University, Leninskie gory, Moscow, 119992, Russia;(3) Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoĭ 18, Yekaterinburg, 620219, Russia |
| 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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