Influence of Crystal Structure on the Magnetic Percolation Threshold in Ultrathin Films

Leonid Afremov; Yury Kirienko

doi:10.4028/www.scientific.net/AMM.328.823

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 328Influence of Crystal Structure on the Magnetic...

Influence of Crystal Structure on the Magnetic Percolation Threshold in Ultrathin Films

Abstract:

Abstract. In this paper, we modelled the phase transition between ferromagnetic and paramagneticstates in ultrathin films of different crystal structure near the percolation transition. Properties of ultrathinfilms have been studied within the framework of Ising model and the method of random-fieldinteraction. It is shown that the critical concentration of such phase transition depends on the symmetryof crystal lattice of the material. The increase in the film thickness leads to a decrease of the criticalconcentration up to a value of the percolation threshold of a massive sample of the correspondingcrystal structure.

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Periodical:

Applied Mechanics and Materials (Volume 328)

Pages:

823-826

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.328.823

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Online since:

June 2013

Authors:

Leonid Afremov, Yury Kirienko

Keywords:

Curie Temperature, Magnetic Phase Transition, Magnetic Ultrathin Films, Ordering, Percolation Threshold

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