Particle morphology characterization and magnetic properties of LaMnO3+d perovskites

被引：12

作者：

Popa, M

Van Hong, L

Kakihana, M

机构：

[1] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[2] Inst Sci Mat, Hanoi, Vietnam

来源：

PHYSICA B-CONDENSED MATTER | 2003年 / 327卷 / 2-4期

关键词：

LaMnO3+d; polymerizable complex method; ferromagnetism;

D O I：

10.1016/S0921-4526(02)01737-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this research we report the characterization of LaMnO3 + d powders synthesized by the polymerized complex method based on the Pechini-type reaction. High-quality nanopowders with controlled stoichiometry and microstructure were prepared at 700degreesC, with mean particle sizes of approximately 45 nm. The synthesized materials were characterized by X-ray diffraction. The structure, homogeneity and particle size of the obtained compounds during different stages were investigated by scanning electron microscopy. The surface area of the final powders was determined, and the thermal magnetization curves in the range 100-300 K were analyzed. The magnetization curves indicated the ferromagnetic behavior of the powders. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：237 / 240

页数：4

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