Formation and superparamagnetic behaviors of LaFeO3 nanoparticles

被引：0
|
作者：
Tatsuo Fujii
Ikkoh Matsusue
Makoto Nakanishi
Jun Takada
机构：
[1] Okayama University,Department of Applied Chemistry, Faculty of Engineering
来源：
Hyperfine Interactions | 2012年 / 205卷
关键词：
LaFeO; nanoparticles; Hot soap method; Superparamagnetism; Mössbauer spectroscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Formation of LaFeO3 nanoparticles obtained from thermal decomposition of organometallic precursors was investigated as a function of the heat-treatment temperature. The precursors heat-treated below 300°C were amorphous, but above 350°C a single-phase of nanocrystalline LaFeO3 was formed. The LaFeO3 nanoparticles showed the superparamagnetic behavior in both magnetization and Mössbauer measurements. With increasing heat-treatment temperature, the crystallite size of LaFeO3 nanoparticles was gradually increased. The quadrupole splitting and isomer shift of paramagnetic doublet pattern were affected by the growth of LaFeO3 particles.
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页码：97 / 100
页数：3
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