Magnetorefractive Effect in Doped La1-xKxMnO3 Thin Films

Elena A. Gan’shina; Yurii P. Sukhorukov; Andrei Telegin; Vladimir D. Bessonov; Andrey R. Kaul

doi:10.4028/www.scientific.net/SSP.215.163

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HomeSolid State PhenomenaSolid State Phenomena Vol. 215Magnetorefractive Effect in Doped La1-xKxMnO3 Thin...

Magnetorefractive Effect in Doped La_1-xK_xMnO₃ Thin Films

Abstract:

Influence the deposition of La³⁺ ions by monovalent K⁺ ions on magnetorefractive effect on magnetoreflaction and magnetotransmission modes in the infrared range for La_1-xK_xMnO₃ epitaxial thin-films (х=0.05, 0.10, 0.15 и 0.18) has been studied. It has been shown that the magnetorefractive effect, transversal Kerr effect and magnetoresistance reach the maximum in optimally doped films at highest Curie temperature. The good agreement between calculated in framework of magnetorefractive effect theory and experimental data takes place only for optimally doped films, with potassium concentrations of 15 % and 18 %. At the other doping levels the films become charge and magnetic inhomogeneous. Magnetic and charge homogeneity influence strongly on magnetooptical effects in films. The resonance-like lines in magnetoreflection spectra of films are connected with the shifting of reflection minimum before the phonon bands under a magnetic field has been observed.

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Solid State Phenomena (Volume 215)

Pages:

163-166

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.215.163

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Online since:

April 2014

Authors:

Elena A. Gan’shina*, Yurii P. Sukhorukov, Andrei Telegin, Vladimir D. Bessonov, Andrey R. Kaul

Keywords:

Film, Infrared Range, Inhomogeneous, Kerr Effect, Magneto-Optical, Magnetoreflection, Magnetorefractive Effect, Magnetoresistance, Magnetotransmission, Manganite, Potassium, Reflection, Resonance, Transmission

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