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

Title:	Optical and magneto-optical studies of (La(0.7)A(0.3))MnO(3) (A = Sr, Ca, and Ce) thin films
Authors:	Liu, H. L. Zhang, Kenneth Y. -J. Wu, L. C. Uba, L. Uba, S. Chang, W. J. Lin, J. -Y. Wang, L. M. 物理研究所 Institute of Physics
Keywords:	Colossal magneto-resistance;Optical property;Magneto-optical effect
Issue Date:	1-Sep-2006
Abstract:	The optical and magneto-optical (MO) properties of (La(0.7)A(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 degrees at similar to 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. (C) 2006 Elsevier B.V. All rights reserved.
URI:	http://dx.doi.org/10.1016/j.jmmm.2006.02.074 http://hdl.handle.net/11536/11838
ISSN:	0304-8853
DOI:	10.1016/j.jmmm.2006.02.074
Journal:	JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume:	304
Issue:	1
Begin Page:	E303
End Page:	E305
Appears in Collections:	Articles

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