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Type: Artigo de periódico
Title: Magnetic Behavior Of Ni Nanoparticles With High Disordered Atomic Structure
Author: Nunes W.C.
De Biasi E.
Meneses C.T.
Knobel M.
Winnischofer H.
Rocha T.C.R.
Zanchet D.
Abstract: This report concerns the magnetic properties of colloidal Ni nanoparticles (NPs) obtained by chemical reduction of Ni(II) salt in an organic solvent. The NPs present a complex and disordered atomic structure, where small clusters of a few Ni atoms appear to coexist within each NP. These NPs exhibit interesting magnetic properties, with a low temperature ferromagnetic order followed by a transition from ferromagnetic to a "spin-glass-like" state as the temperature decreases. The results are discussed considering the role of the atomic ordering of the NPs on the corresponding magnetic behavior. © 2008 American Institute of Physics.
Rights: aberto
Identifier DOI: 10.1063/1.2920817
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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