Linear and quadratic magneto-optical effects observed in La0.7Sr0.3MnO3 thin films in transmitted light

• Published in: JETP letters Vol. 98; no. 8; pp. 460 - 464
• Main Authors: Greben’kova, Yu. E., Sokolov, A. E., Edelman, I. S., Andreev, N. V., Chichkov, V. I., Mukovskii, Ya. M.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-12-2013
• Subjects: Atomic; Biological and Medical Physics; Biophysics; Molecular; Optical and Plasma Physics; Particle and Nuclear Physics; Physics; Physics and Astronomy; Quantum Information Technology; Solid State Physics; Spintronics; Optical Conductivity; JETP Letter; Manganite; Kerr Effect; Spectral Dependence
• ISSN: 0021-3640; 1090-6487
• DOI: 10.1134/S0021364013210078

Magnetic linear dichroism (MLD) is observed in polycrystalline La
0.7
Sr
0.3
MnO
3
films in transmitted light. The spectral and temperature dependences of the MLD are determined for the energy
E
of the light wave ranging from 1.5 to 3.5 eV. The experimental spectra are fitted by a sum of Lorentzian curves. The MLD spectrum exhibits more features in comparison to the spectra of magnetic circular dichroism (MCD), which we measured earlier using the same film samples. Various temperature behaviors of the intensities of the Lorentzian components centered at different
E
values have been revealed. This can be related to the effect of the surface states on the magneto-optical characteristics of the samples.