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

被引：5

作者：

Liu, H. L. ^{[1
]}

Zhang, Kenneth Y. -J. ^{[1
]}

Wu, L. C. ^{[1
]}

Uba, L. ^{[2
]}

Uba, S. ^{[2
]}

Chang, W. J. ^{[3
]}

Lin, J. -Y. ^{[3
]}

Wang, L. M. ^{[4
]}

机构：

[1] Natl Taiwan Normal Univ, Dept Phys, Taipei 117, Taiwan

[2] Univ Bialystok, Inst Expt Phys, Bialystok, Poland

[3] Natl Chiao Tung Univ, Inst Phys, Hsinchu, Taiwan

[4] Da Yeh Univ, Dept Elect Engn, Changhua, Taiwan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 304卷 / 01期

关键词：

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

D O I：

10.1016/j.jmmm.2006.02.074

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：E303 / E305

页数：3

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