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Temperature dependence of the interphase interaction energy of core/shell nanoparticles

2019; IOP Publishing; Volume: 1389; Issue: 1 Linguagem: Inglês

10.1088/1742-6596/1389/1/012027

1742-6596

S. V. Anisimov, Leonid Afremov, Alexander Petrov,

Magnetic properties of thin films

Abstract Within the framework of the Ising model, in the direct exchange interaction approximation by the “average spin” method, the constant of the interphase exchange interaction A(T) , which determines the exchange bias field, is estimated. It was shown that A(T) ~ e (− T / T 0 ) , where the characteristic temperature T 0 is determined by the constant of the exchange interaction between the atoms of the core and the shell.