Magnetic properties of maghemite nanoparticles

V. N. Nikiforov, A. E. Goldt, E. A. Gudilin, V. G. Sredin, V. Yu Irhin

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Magnetic particles of maghemite (spinel γ-Fe2O3) are synthesized by means of aerosol pyrolysis, making it possible to produce chemically uniform highly-dispersed single-phase materials. The magnetic properties of synthesized particles for temperatures ranging from helium temperature up to room temperature and higher are investigated using a SQUID magnetometer. The experimental curves are compared to the results from calculations performed by the Monte Carlo method. It is found that the Curie temperature is lower for γ-Fe2O3 nanoparticles than for bulk samples. Several parameters of the material are estimated by comparing the experimental and calculated results.

Original languageEnglish
Pages (from-to)1075-1080
Number of pages6
JournalBulletin of the Russian Academy of Sciences: Physics
Volume78
Issue number10
DOIs
Publication statusPublished - 21 Oct 2014
Externally publishedYes

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