Variation of the electrophysical properties of La0.67Ca0.33MnO3 epilayers during secondary recrystallization

被引：15

作者：

Boikov, YA

Klaeson, T

Boikov, AY

机构：

[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

[2] Chalmers Univ Technol, S-41296 Gothenburg, Sweden

[3] St Petersburg State Univ, St Petersburg 198904, Russia

来源：

TECHNICAL PHYSICS | 2001年 / 46卷 / 10期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1412060

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

La0.67Ca0.33MnO3 epitaxial films are grown by laser evaporation on (LaAlO3)(03) + ((SrAlTaO6)-Al-2)(0.7) substrates. The films have single-crystal line mosaic blocks (grains), which are distinctly oriented in both the azimuth direction and the substrate plane. During the heat treatment of the manganite films in the oxygen atmosphere, their microstructure is improved both in the bulk and in the intergranular regions. The maximal value of the temperature coefficient of resistance for the heat-treated La0.67Ca0.33MnO3 films increases by nearly two times, while the magnetoresistance increases by no more than 10%. (C) 2001 MAIK "Nauka/Interperiodica".

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收藏

页码：1260 / 1264

页数：5

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