skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Superparamagnetic Particle Size Limit of Mn-Zn Ferrite Nanoparticles Synthesised Through Aqueous Method

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. Moessbauer studies on the synthesized nanoparticles suggest that the critical particle size limit for superparamagnetism to be about 25 nm at 293 K.

Authors:
 [1];  [2];  [3]; ; ;  [1]
  1. Graduate School of Environmental Studies, Tohoku University, AramakiAza Aoba-ku, Sendai 980-8579 (Japan)
  2. (India)
  3. Materials Science Centre, Dept. of Nuclear Physics, University of Madras, Guindy Campus, Chennai-25 (India)
Publication Date:
OSTI Identifier:
20798650
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 833; Journal Issue: 1; Conference: 3. international workshop on water dynamics, Sendai (Japan), 16-17 Nov 2005; Other Information: DOI: 10.1063/1.2207067; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CATIONS; CURIE POINT; DISTRIBUTION; FERRITES; MANGANESE COMPOUNDS; MOESSBAUER EFFECT; NANOSTRUCTURES; OXIDATION; PARTICLE SIZE; PARTICLES; SUPERPARAMAGNETISM; ZINC COMPOUNDS

Citation Formats

Joseyphus, R. Justin, Materials Science Centre, Dept. of Nuclear Physics, University of Madras, Guindy Campus, Chennai-25, Narayanasamy, A., Jeyadevan, B., Shinoda, K., and Tohji, K. Superparamagnetic Particle Size Limit of Mn-Zn Ferrite Nanoparticles Synthesised Through Aqueous Method. United States: N. p., 2006. Web. doi:10.1063/1.2207067.
Joseyphus, R. Justin, Materials Science Centre, Dept. of Nuclear Physics, University of Madras, Guindy Campus, Chennai-25, Narayanasamy, A., Jeyadevan, B., Shinoda, K., & Tohji, K. Superparamagnetic Particle Size Limit of Mn-Zn Ferrite Nanoparticles Synthesised Through Aqueous Method. United States. doi:10.1063/1.2207067.
Joseyphus, R. Justin, Materials Science Centre, Dept. of Nuclear Physics, University of Madras, Guindy Campus, Chennai-25, Narayanasamy, A., Jeyadevan, B., Shinoda, K., and Tohji, K. Mon . "Superparamagnetic Particle Size Limit of Mn-Zn Ferrite Nanoparticles Synthesised Through Aqueous Method". United States. doi:10.1063/1.2207067.
@article{osti_20798650,
title = {Superparamagnetic Particle Size Limit of Mn-Zn Ferrite Nanoparticles Synthesised Through Aqueous Method},
author = {Joseyphus, R. Justin and Materials Science Centre, Dept. of Nuclear Physics, University of Madras, Guindy Campus, Chennai-25 and Narayanasamy, A. and Jeyadevan, B. and Shinoda, K. and Tohji, K.},
abstractNote = {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. Moessbauer studies on the synthesized nanoparticles suggest that the critical particle size limit for superparamagnetism to be about 25 nm at 293 K.},
doi = {10.1063/1.2207067},
journal = {AIP Conference Proceedings},
number = 1,
volume = 833,
place = {United States},
year = {Mon May 15 00:00:00 EDT 2006},
month = {Mon May 15 00:00:00 EDT 2006}
}