Delamination and magnetism softening of polycrystalline La0.9Ba0.1MnO3

被引：7

作者：

Cui, Yimin ^{[1
]}

Wang, Rongming ^{[1
]}

Zhang, Liuwan ^{[2
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Sch Sci, Beijing 100083, Peoples R China

[2] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 07期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2903461

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Two ferromagnetic transitions have been found by temperature dependence ac susceptibility experiments on as-prepared bulk polycrystalline La0.9Ba0.1MnO3. Investigation indicates that the higher temperature transition (T-Ch) can be attributed to the oxygen excessive phase La0.9Ba0.1MnO3+delta at the surface, while the lower temperature transition (T-Cl) can be attributed to the interior stoichiometric phase La0.9Ba0.1MnO3 of the samples. Softening of ferromagnetic system near T-Cl has been observed in La0.9Ba0.1MnO3, which can be explained by the freezing of misorder of metal ion at higher temperature. (C) 2008 American Institute of Physics.

引用

页数：4

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