Giant diamagnetism in AuFe nanoparticles

Jun Hua Wu, Ji Hyun Min, Hong Ling Liu, Ji Ung Cho, Young Keun Kim

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Multifunctional Au0.5Fe0.5 alloy nanoparticles from a polyol process were investigated, showing the alloy nanostructures with the formation of a new phase and twin microstructures. Giant diamagnetism, on the order of -10-2 emu g-1 Oe-1, is observed in the zero-field cooled process of the nanoparticles, which is modeled in terms of the spin-orbital interactions tuned by the modified potential energy as a result of the shrinking dimension, peculiar disordered microstructure, and heterogeneous elemental composition.

Original languageEnglish
Article number4957807
Pages (from-to)2442-2445
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number6
Publication statusPublished - 2009 Jun

Bibliographical note

Funding Information:
This work was supported in part by the Korea Science and Engineering Foundation through the National Research Laboratory Program (No. M10500000105-05J0000-10510), in part by the Pioneer Research Center Program (No. M10711160001-08M1116-00110), and in part by the Seoul R&BD Program (No. 10920).


  • AuFe
  • Giant diamagnetism
  • Nanoparticle
  • Potential energy
  • Spin-orbital interaction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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