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Giant Diamagnetism in AuFe Nanoparticles

Authors
Wu, Jun-HuaMin, Ji HyunLiu, Hong-LingCho, Ji UngKim, Young Keun
Issue Date
Jun-2009
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
AuFe; giant diamagnetism; nanoparticle; potential energy; spin-orbital interaction
Citation
IEEE TRANSACTIONS ON MAGNETICS, v.45, no.6, pp.2442 - 2445
Indexed
SCIE
SCOPUS
Journal Title
IEEE TRANSACTIONS ON MAGNETICS
Volume
45
Number
6
Start Page
2442
End Page
2445
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/119851
DOI
10.1109/TMAG.2009.2018604
ISSN
0018-9464
Abstract
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.
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