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

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)e303-e305
JournalJournal of Magnetism and Magnetic Materials
Volume304
Issue number1
DOIs
Publication statusPublished - 2006 Sep 1

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Ions
Thin films
thin films
ions
Band structure
Carrier concentration
Cations
Optical properties
Positive ions
Doping (additives)
retarding
optical properties
cations
electronics

Keywords

  • Colossal magneto-resistance
  • Magneto-optical effect
  • Optical property

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Optical and magneto-optical studies of (La0.7A0.3)MnO3 (A=Sr, Ca, and Ce) thin films. / Liu, H. L.; Zhang, Kenneth Y.J.; Wu, L. C.; Uba, L.; Uba, S.; Chang, W. J.; Lin, J. Y.; Wang, L. M.

In: Journal of Magnetism and Magnetic Materials, Vol. 304, No. 1, 01.09.2006, p. e303-e305.

Research output: Contribution to journalArticle

Liu, H. L. ; Zhang, Kenneth Y.J. ; Wu, L. C. ; Uba, L. ; Uba, S. ; Chang, W. J. ; Lin, J. Y. ; Wang, L. M. / Optical and magneto-optical studies of (La0.7A0.3)MnO3 (A=Sr, Ca, and Ce) thin films. In: Journal of Magnetism and Magnetic Materials. 2006 ; Vol. 304, No. 1. pp. e303-e305.
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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.

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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.

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