Formation and superparamagnetic behaviors of LaFeO 3 nanoparticles

Tatsuo Fujii, Ikkoh Matsusue, Makoto Nakanishi, Jun Takada

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Formation of LaFeO 3 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 LaFeO 3 was formed. The LaFeO 3 nanoparticles showed the superparamagnetic behavior in both magnetization and Mössbauer measurements. With increasing heat-treatment temperature, the crystallite size of LaFeO 3 nanoparticles was gradually increased. The quadrupole splitting and isomer shift of paramagnetic doublet pattern were affected by the growth of LaFeO 3 particles.

Original languageEnglish
Pages (from-to)97-100
Number of pages4
JournalHyperfine Interactions
Volume205
Issue number1-3
DOIs
Publication statusPublished - Mar 1 2012

Keywords

  • Hot soap method
  • LaFeO nanoparticles
  • Mössbauer spectroscopy
  • Superparamagnetism

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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