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 2012

Fingerprint

Nanoparticles
nanoparticles
heat treatment
Heat treatment
Organometallics
Crystallite size
Isomers
thermal decomposition
Magnetization
Pyrolysis
isomers
quadrupoles
heat
Temperature
magnetization
temperature
shift
Hot Temperature

Keywords

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

ASJC Scopus subject areas

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

Cite this

Formation and superparamagnetic behaviors of LaFeO 3 nanoparticles. / Fujii, Tatsuo; Matsusue, Ikkoh; Nakanishi, Makoto; Takada, Jun.

In: Hyperfine Interactions, Vol. 205, No. 1-3, 03.2012, p. 97-100.

Research output: Contribution to journalArticle

Fujii, Tatsuo ; Matsusue, Ikkoh ; Nakanishi, Makoto ; Takada, Jun. / Formation and superparamagnetic behaviors of LaFeO 3 nanoparticles. In: Hyperfine Interactions. 2012 ; Vol. 205, No. 1-3. pp. 97-100.
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