Effect of an interface boundary on the magnetooptical and magnetotransport properties of La0.67Ca0.33MnO3/La0.67Sr0.33MnO3 heterostructures

被引：1

作者：

Sukhorukov, Yu. P. ^{[1
]}

Telegin, A. V. ^{[1
]}

Gan'shina, E. A. ^{[2
,3
]}

Stepantsov, E. A.

Vinogradov, A. N. ^{[2
]}

Lombardi, F. ^{[4
]}

Winkler, D. ^{[4
]}

机构：

[1] Russian Acad Sci, Inst Met Phys, Ural Branch, Ekaterinburg 620041, Russia

[2] Moscow MV Lomonosov State Univ, Moscow 119899, Russia

[3] Russian Acad Sci, AV Shubnikov Crystallog Inst, Moscow 119133, Russia

[4] Chalmers Univ Technol, SE-41296 Gothenburg, Sweden

来源：

TECHNICAL PHYSICS | 2010年 / 55卷 / 08期

基金：

瑞典研究理事会; 俄罗斯基础研究基金会;

关键词：

MICROSTRUCTURE; SPECTROSCOPY; MANGANITES; TRANSPORT; FILMS;

D O I：

10.1134/S1063784210080141

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The optical, magnetooptical (Kerr effect and magnetotransmission), and magnetotransport properties of La2/3Ca1/3MnO3/La2/3Sr1/3MnO3 and La2/3Ca1/3MnO3/SrTiO3/La2/3Sr1/3MnO3 heterostructures on SrTiO3 substrates are studied. The contribution of the interface boundary to the magnetotransmission is typical of a material with a transitional composition. It is found that a 2-nm-thick SrTiO3 spacer does not influence the shape and position of the magnetotransmission peak in a field normal to the surface of the heterostructure but increases the contribution of the upper layer to the magnetotransmission in the Voigt geometry and also enhances the magnetoresistance that is due to the tunneling of spin-polarized carriers through the spacer. The Kerr spectra taken of the heterostructures are typical of single-layer single-crystal films.

引用

页码：1161 / 1167

页数：7

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