THE ANALYSIS OF THE MAGNETOREFRACTIVE EFFECT IN La 0.7Ca0.3MnO3: THIN FILMS AND SINGLE CRYSTALS

被引：4
|
作者：
Yurasov, A. N. [1 ]
Bakhvalova, T. N. [1 ]
Telegin, A., V [2 ]
Sukhorukov, Yu P. [2 ]
Granovsky, A. B. [3 ,4 ]
机构：
[1] Moscow Tech Univ Radioengn Elect & Automat, Moscow 119454, Russia
[2] RAS, Inst Phys Met, Ural Div, Russian Fed, Ekaterinburg 620990, Russia
[3] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia
[4] Ikerbasque, Basque Fdn Sci, Bilbao, 48011, Spain
来源：
MAGNETISM AND MAGNETIC MATERIALS V | 2012年 / 190卷
基金：
俄罗斯基础研究基金会;
关键词：
Magnetorefractive effect; magnetoresistance; manganites; magnetoreflection; magnetotransmission;
D O I：
10.4028/www.scientific.net/SSP.190.381
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Recently, it has been shown that the magnetorefractive effect in reflection and transmission modes in La0.7Ca0.3MnO3 manganite thin films and single crystals can reach several percents for single crystals and up to 20-40% for thin films in the middle infrared spectral range near the Curie temperature. In the present paper, to explain these data we used the effective medium approach and supposed that La Ca-0.7 0.3MnO3 manganites consist of low and high resistivity phases with volume fractions depending on an applied magnetic field. It is shown that the magnetorefractive effect spectra strongly depend on magnetoresistance and optical properties of manganites in the infrared range.
引用
收藏
页码：381 / +
页数：2
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