Optical and magneto-optical studies of (La0.7A0.3)MnO3 (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)MnO₃ (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

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The optical and magneto-optical (MO) properties of (La_0.7A_0.3)MnO₃ (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.

Original language	English
Pages (from-to)	e303-e305
Journal	Journal of Magnetism and Magnetic Materials
Volume	304
Issue number	1
DOIs	https://doi.org/10.1016/j.jmmm.2006.02.074
Publication status	Published - 2006 Sept

Keywords

Colossal magneto-resistance
Magneto-optical effect
Optical property

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2006.02.074

Cite this

@article{55c6d579bd48484084a6a6583c4a5fcb,

title = "Optical and magneto-optical studies of (La0.7A0.3)MnO3 (A=Sr, Ca, and Ce) thin films",

abstract = "The optical and magneto-optical (MO) properties of (La0.7A0.3)MnO3 (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.",

keywords = "Colossal magneto-resistance, Magneto-optical effect, Optical property",

author = "Liu, {H. L.} and Zhang, {Kenneth Y.J.} and Wu, {L. C.} and L. Uba and S. Uba and Chang, {W. J.} and Lin, {J. Y.} and Wang, {L. M.}",

note = "Funding Information: This work was supported by the National Science Council of Republic of China under Grant no. NSC94-2112-M-003-002, 94-2120-M-007-013, and the National Taiwan Normal University under Grant no. ORD93-B.",

year = "2006",

month = sep,

doi = "10.1016/j.jmmm.2006.02.074",

language = "English",

volume = "304",

pages = "e303--e305",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

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TY - JOUR

T1 - Optical and magneto-optical studies of (La0.7A0.3)MnO3 (A=Sr, Ca, and Ce) thin films

AU - Liu, H. L.

AU - Zhang, Kenneth Y.J.

AU - Wu, L. C.

AU - Uba, L.

AU - Uba, S.

AU - Chang, W. J.

AU - Lin, J. Y.

AU - Wang, L. M.

N1 - Funding Information: This work was supported by the National Science Council of Republic of China under Grant no. NSC94-2112-M-003-002, 94-2120-M-007-013, and the National Taiwan Normal University under Grant no. ORD93-B.

PY - 2006/9

Y1 - 2006/9

N2 - The optical and magneto-optical (MO) properties of (La0.7A0.3)MnO3 (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.

AB - The optical and magneto-optical (MO) properties of (La0.7A0.3)MnO3 (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.

KW - Colossal magneto-resistance

KW - Magneto-optical effect

KW - Optical property

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