Synthesis of monosized magnetic-optical AuFe alloy nanoparticles

Hong Ling Liu, Jun Hua Wu, Ji Hyun Min, Young-geun Kim

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

We report the preparation and characterization of multifunctional AuFe alloy nanoparticles of three compositions, Au0.25 Fe0.75, Au0.5 Fe0.5, and Au0.75 Fe0.25, by a polyol process. It is found that the fusion of the two elements into one nanostructure entity retains the optical and magnetic properties of the individual components. The x-ray diffraction and transmission electron microscopy analyses confirm the formation of the alloy nanostructure with a narrow distribution of particle sizes and provides the detailed structural arrangements. The magnetic investigation shows the superparamagnetic or soft ferromagnetic behavior of the nanoparticles at room temperature, whereas the UV-visible measurements display the variation of the absorption bands at ∼560 nm. The AuFe nanoparticles are rendered water soluble after thiolation.

Original languageEnglish
Article number07D529
JournalJournal of Applied Physics
Volume103
Issue number7
DOIs
Publication statusPublished - 2008 Apr 21

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nanoparticles
synthesis
x ray diffraction
fusion
magnetic properties
absorption spectra
optical properties
preparation
transmission electron microscopy
room temperature
water

ASJC Scopus subject areas

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

Cite this

Synthesis of monosized magnetic-optical AuFe alloy nanoparticles. / Liu, Hong Ling; Wu, Jun Hua; Min, Ji Hyun; Kim, Young-geun.

In: Journal of Applied Physics, Vol. 103, No. 7, 07D529, 21.04.2008.

Research output: Contribution to journalArticle

Liu, Hong Ling ; Wu, Jun Hua ; Min, Ji Hyun ; Kim, Young-geun. / Synthesis of monosized magnetic-optical AuFe alloy nanoparticles. In: Journal of Applied Physics. 2008 ; Vol. 103, No. 7.
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