Giant magnetorefractive effect in La0.7Ca0.3MnO3 films

被引：25

作者：

Granovskii, A. B. ^{[1
]}

Sukhorukov, Yu P. ^{[2
]}

Telegin, A. V. ^{[2
]}

Bessonov, V. D. ^{[2
]}

Gan'shina, E. A. ^{[1
]}

Kaul', A. R. ^{[1
]}

Korsakov, I. E. ^{[1
]}

Gorbenko, O. Yu ^{[1
]}

Gonzalez, J. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow 119991, Russia

[2] Russian Acad Sci, Ural Branch, Inst Met Phys, Ekaterinburg 620990, Russia

[3] Univ Basque Country, Fac Quim, Dept Fis Mat, San Sebastian 20009, Spain

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2011年 / 112卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

MAGNETOOPTICAL PROPERTIES; MAGNETOTRANSPORT;

D O I：

10.1134/S106377611005105X

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Complex experimental investigations of the structural, optical, and magneto-optical properties (magnetotransmission, magnetoreflection, and transversal Kerr effect, as well as the magnetoresistance, of La0.7Ca0.3MnO3 epitaxial films indicate that magnetoreflection and magnetotransmission in manganite films can reach giant values and depend strongly on the magnetic and charge homogeneity of the films, their thickness, and spectral range under investigation. It has been shown that the optical enhancement of the magnetorefractive effect occurs in thin films as compared to manganite crystals. In the region of the minimum of the reflectance near the first phonon band, the resonance-like magnetorefractive effect has been observed, which is accompanied by change of the sign of the magnetoreflection. A model based on the theory of the magnetorefractive effect has been proposed to qualitatively explain this behavior.

引用

页码：77 / 86

页数：10

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