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Effect of the capping agents on cobalt nanoparticles

L Sciortino1, A Longo2, F Giannici1 and A Martorana1,2

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The achievement of high information density and fast recording rate in memory devices crucially depends on the structure of magnetic domains. In this paper cobalt nanoparticles are synthesised using two capping agents (TOA, ODA) and two different preparation routes: thermal decomposition (TD) and Solvated Metal Atom Dispersion (SMAD). The interaction of capping agents with free metal clusters and their influence on Co nanoparticles size, atomic structure and oxidation state is investigated by means of X-ray diffraction and X-ray absorption spectroscopy.


PACS

75.75.+a Magnetic properties of nanostructures

75.50.Tt Fine-particle systems; nanocrystalline materials

61.05.cp X-ray diffraction

75.60.Ch Domain walls and domain structure

78.70.Dm X-ray absorption spectra

Subjects

Condensed matter: electrical, magnetic and optical

Nanoscale science and low-D systems

Dates

Issue 1 (2009)



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