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http://dx.doi.org/10.1166/jnn.2010.2518

has been cited by the following article:

• TITLE: Effect of Annealing Temperature on Prepared Nanoparticles Li-Ferrite Using Positron Annihilation Lifetime Technique

  AUTHORS: A. M. Samy, E. Hassan Aly

  KEYWORDS: Nano Li-Ferrite, Porosity, Positron Annihilation, Initial Permeability, Magnetization

  JOURNAL NAME: Materials Sciences and Applications, Vol.6 No.5, May 22, 2015

  ABSTRACT: Lithium ferrite nanoparticles were synthesized by a sol-gel auto-combustion method. For prepared samples, the nanograins were increased with increasing the annealing temperature. Positron annihilation lifetime spectroscopy (PALS) was used to study defects at different sites for nanograins Li-ferrites. The analysis of the PAL spectrum indicated two lifetime components τ1 and τ2 for the annihilation of the positrons, and their corresponding relative intensities I1% and I2%. For nanoparticles Li-ferrite there are correlations between: 1) I2, τ2, annealing temperature and the total porosity (Pt) with the grain size; 2) I1, μi, Ms and the homogeneity with grain size.