Size Effect in Nix(MgO)100-X Nanocomposites

Abstract:

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The possibility of obtaining a nanostructured composite in the Ni-Mg-O system by ion-beam sputtering has been investigated. The structural, magnetic and magnetoresistive properties of obtained samples have been investigated in a wide concentration range. The presence of the nanostructure in the obtained samples with Ni nanogranules (2-3 nm) has been confirmed by transmission electron microscopy. There is no observation of any magnetic or magnetoresistive properties at room temperature in the Nix(MgO)100-x composites. These properties were observed at 77 K. The obtained data mean that Curie temperature of the Ni nanogranules is lower then 298 K. This is due to small size of nickel granules and low value of exchange interaction energy in nickel.

Info:

Periodical:

Solid State Phenomena (Volumes 168-169)

Main Theme:

Edited by:

V. Ustinov

Pages:

361-364

DOI:

10.4028/www.scientific.net/SSP.168-169.361

Citation:

A.A. Grebennikov and O.V. Stognei, "Size Effect in Nix(MgO)100-X Nanocomposites", Solid State Phenomena, Vols. 168-169, pp. 361-364, 2011

Online since:

December 2010

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Price:

$35.00

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