Characterization and magnetic properties of core/shell structured Fe/Au nanoparticles

Sung Jin Cho, Susan M. Kauzlarich, Justin Olamit, Kai Liu, Fernande Grandjean, Leila Rebbouh, Gary J. Long

Research output: Contribution to journalArticle

77 Scopus citations

Abstract

The magnetic properties and characterization of core/shell structured Au-coated Fe nanoparticles were investigated. The nanoparticles were synthesized by using a reverse micelle method through the reduction of an aqueous solution. The temperature dependence of the magnetization was found to exhibit a maximum at a blocking temperature of about 150 K. The presence of an α-Fe component and a broad distribution of local environments were showed by the Mössbauer spectroscopy. A negative giant magnetoresistance effect was found as the Fe cores served as scattering centers for the electrical transport.

Original languageEnglish (US)
Pages (from-to)6804-6806
Number of pages3
JournalJournal of Applied Physics
Volume95
Issue number11 II
DOIs
StatePublished - Jun 1 2004

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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    Cho, S. J., Kauzlarich, S. M., Olamit, J., Liu, K., Grandjean, F., Rebbouh, L., & Long, G. J. (2004). Characterization and magnetic properties of core/shell structured Fe/Au nanoparticles. Journal of Applied Physics, 95(11 II), 6804-6806. https://doi.org/10.1063/1.1676033