کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1311465 | 1499209 | 2008 | 6 صفحه PDF | دانلود رایگان |
Negatively charged 4 nm bimetallic NiII–FeIII cyanide-bridged nanoparticles were obtained and isolated by different coating agents. The magnetic properties of the particles were studied in the powder form and in diluted samples. A spin-glass like behaviour occurs in the concentrated sample, while the magnetic behaviour of the diluted ones strongly depends on the method used to isolate the nanoparticles. Only high dilution in a polymer matrix leads to a single-domain superparamagnetic behaviour, with a blocking temperature of 3.5 K.
Negatively charged 4 nm bimetallic NiII–FeIII cyanide-bridged coordination nanoparticles were isolated by different coating agents. The magnetic properties of the nanoparticles are found to be directly related to the dilution process. A single domain magnetic behaviour with almost no dipolar interaction is observed only when the particles are highly diluted in a polymer matrix.Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 361, Issues 14–15, 1 October 2008, Pages 3931–3936