Optical and magneto-optical studies of (La 0.7A 0.3)MnO 3 (A=Sr, Ca, and Ce) thin films

H.L Liu,Kenneth Y.-J Zhang,L.C Wu,L Uba,S Uba,W.J Chang,J.-Y Lin,L.M Wang

doi:10.1016/j.jmmm.2006.02.074

Optical and magneto-optical studies of (La 0.7A 0.3)MnO 3 (A=Sr, Ca, and Ce) thin films

H.L Liu, Kenneth Y.-J Zhang + Show 6 more

https://doi.org/10.1016/j.jmmm.2006.02.074

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Journal: Journal of Magnetism and Magnetic Materials	Publication Date: Mar 6, 2006
Citations: 4

Affiliation: National Taiwan Normal University, University of Białystok

#Electronic Band Structures #Ce Thin Films + Show 8 more

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Abstract

The optical and magneto-optical (MO) properties of (La 0.7A 0.3)MnO 3 (A=Sr, Ca, and Ce) thin films have been investigated. It is found that the value shape of spectra is strongly dependent on different cation dopings. The Sr-doped thin film exhibits a strong Drude response and maximum Kerr rotation angle of 0.32° at ∼3.4 eV. Interestingly, the replacement of Sr ions with the smaller Ca ions and the tetravalent Ce ions all lead to a remarkable suppression of the carrier density and the MO response. Such differences are interpreted as due to their different electronic band structures.

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