Structural Transformations and Nanoparticle Formation in LaMnO3+δ

被引：1

作者：

Shekhtman, V. Sh. ^{[1
]}

Sedykh, V. D. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Oblast, Russia

来源：

JOURNAL OF SURFACE INVESTIGATION | 2007年 / 1卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

Manganite; Surface Investigation; Neutron Technique; Nanoparticle Formation; Cation Vacancy;

D O I：

10.1134/S1027451007050035

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The results on the problem of the controlled use of mutual structural transformations to influence the microstructural characteristics in lanthanum manganite are summarized. X-ray diffraction analysis, Mossbauer spectroscopy, and transmission electron microscopy are used as the main characterization technique. Data on the reversibility of phase transitions between polymorphous modifications of LaMnO3+delta compounds are presented. It is revealed that the excess oxygen concentration plays an active role in these transformations. It is shown experimentally that reversible phase transitions can be used as a real mechanism of nanoparticle formation.

引用

页码：513 / 521

页数：9

共 13 条

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