Monte Carlo study on bilayer thin films magnetic properties dependence with discontinouos anisotropy parameters |
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Authors: | Eugen Bîrsan |
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Institution: | (1) Physics Department, “Lucian Blaga” University, str. Dr I.Ratiu, No.5–7, 550024 Sibiu, Romania |
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Abstract: | In the last few years there has been significant interest in the field of thin films, due to numerous specific phenomena related
to the low dimension of these systems, and to the large opportunities in development of high technologies based on their specific
magnetic and electronic properties. When dealing with systems of reduced dimensionality it is important to take into account
the influence of magnetic anisotropies. In this paper we investigate the magnetic properties of bilayer thin film. This behavior
is modeled using Monte Carlo simulations, in the Extended Anisotropic Heisenberg Model. The magnetization, out-of-plane and
in-plane magnetic susceptibilities, and also the specific heat bearings according to temperature are investigated in order
to find the potential magnetic ordering phases and the critical temperatures, for two sets parameter assignments. For quasi-uniform
anisotropy parameters of the film we detect the ferromagnetism-paramagnetism transition and then, by changing the model parameters
values, we relieve a short range ferromagnetic ordering phase arising from the antiferromagnetic base layer coupling influence
and from easy-plane anisotropy discontinuity on the layers interface.
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Keywords: | anisotropic Heisenberg model Monte Carlo simulations magnetic properties of thin films |
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