Superparamagnetic particle size limit of Mn-Zn ferrite nanoparticles synthesised through aqueous method

R. Justin Joseyphus, A. Narayanasamy, B. Jeyadevan, K. Shinoda, K. Tohji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Mn0.67Zn0.33Fe2O4 nanoparticles with size ranging from 20 to 80 nm have been synthesized using the modified oxidation method. The Curie temperatures for all the samples are found to be within 630 ± 5 K suggesting that there is no size-dependent cation distribution. Mössbauer studies on the synthesized nanoparticles suggest that the critical particle size limit for superparamagnetism to be about 25 nm at 293 K.

Original languageEnglish
Title of host publicationWATER DYNAMICS
Subtitle of host publication3rd International Workshop on Water Dynamics
Pages31-34
Number of pages4
DOIs
Publication statusPublished - 2006 May 15
EventWATER DYANMICS: 3rd International Workshop on Water Dynamics - Sendai, Japan
Duration: 2005 Nov 162005 Nov 17

Publication series

NameAIP Conference Proceedings
Volume833
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherWATER DYANMICS: 3rd International Workshop on Water Dynamics
CountryJapan
CitySendai
Period05/11/1605/11/17

Keywords

  • Magnetic properties
  • Mn-Zn ferrite
  • Mössbauer spectroscopy
  • Oxidation method

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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