Size Effect in Nix(MgO)100-X Nanocomposites

A.A. Grebennikov; O.V. Stognei

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

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HomeSolid State PhenomenaSolid State Phenomena Vols. 168-169Size Effect in Nix(MgO)100-X Nanocomposites

Size Effect in Ni_x(MgO)_100-X Nanocomposites

Abstract:

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.

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Periodical:

Solid State Phenomena (Volumes 168-169)

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361-364

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.168-169.361

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Online since:

December 2010

Authors:

A.A. Grebennikov, O.V. Stognei

Keywords:

Curie Temperature, Magnetisation, Magnetoresistivity MR, Nanogranular Composites, Size Effect

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References

[1] B.P. Tarasov, N.F. Goldsher, A.P. Moravskiy: Uspehi Himii. Vol. 70 (2001), p.149.

Google Scholar

[2] V.M. Azhazha, M.A. Tihonovskiy, A.G. Shepelev, Y.P. Kurilo, T.A. Ponomarenko, D.V. Vinogradov: Voprosi Atomnoy Nauki I Tehniki. №1. Series (15) (2006), p.145.

Google Scholar

[3] B. Abeles, P. Sheng, M.D. Coutts and Y. Arie: Advances in Physics Vol. 24 (1975), p.407.

Google Scholar

[4] S. Sankar, A.E. Berkowitz, D.J. Smith: Phys. Rev. B. Vol. 62 (2000), p.14273.

Google Scholar

[5] B. Sadeh, M. Doi, T. Shimizu, M.J. Matsui: Magn. Soc. Jap. Vol. 24 (2000), p.511.

Google Scholar