Published in

Cambridge University Press (CUP), Diamond Light Soure Proceedings, SRMS-7(1), 2011

DOI: 10.1017/s2044820111000165

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Extended X-ray absorption fine structure studies of magnetic nanoparticles

Journal article published in 2011 by A. Agarwal, Mk K. Singh ORCID, T. Kaneko, S.-I. Nagamatsu, T. Konishi, T. Fujikawa
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

We have synthesized nickel by means of pulsed laser ablation. A nickel disc was used for ablation with the focused output of fundamental harmonic from Nd:YAG laser. X-ray diffraction result shows that the synthesized nanoparticles are of pure metallic nickel with a face-centred cubic structure and the average particle size is 35 nm. The extended X-ray absorption fine structure (EXAFS) studies of pure nickel foil and the synthesized nanoparticles show similar structures. The position of the main peak is same in these nanoparticles with reference to the nickel foil. The only difference was observed in the reduction of the amplitude. The nearest-neighbour distance is similar as for pure nickel foil. The Debye–Waller factor is also similar. There is no trace of oxide and hydroxide in the EXAFS data, suggesting that the synthesized nanoparticles contain only nickel metal.