Monte Carlo study of a mixed spin-2 and spin-5/2 Ising system on a honeycomb lattice
Исследование методом Монте-Карло смешанной модели Изинга со спинами 2 и 5/2 на гексагональной решётке
2000-05-01
SCID: 54.1/7zqytkv4
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Monte Carlo simulationshoneycomb latticemixed-spin ferrimagnetic Ising systemsingle-ion anisotropyspin-2 and spin-5/2
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Abstract (AI)
In order to study the magnetic properties of a mixed spin-2 and spin-5/2 ferrimagnetic Ising system on a two-dimensional honeycomb lattice, we carried out Monte Carlo simulations. We found that the system which includes only a nearest-neighbour interaction and a single-ion anisotropy just on a spin-2 does not have a compensation point. The result contradicts that predicted by the effective-field theory. The inconsistency arises from how one estimates the two-point and three-point correlations.
Key Findings
1
Monte Carlo simulations investigated a mixed spin-2 and spin-5/2 ferrimagnetic Ising system on a two-dimensional honeycomb lattice.
2
The Monte Carlo result contradicts the compensation point predicted by effective-field theory.
3
The discrepancy is attributed to different treatments of two-point and three-point spin correlations.
4
With only nearest-neighbour interactions and single-ion anisotropy applied to spin-2 sites, the system exhibits no compensation point.
Research Object
Mixed spin-2 and spin-5/2 ferrimagnetic Ising system on a two-dimensional honeycomb lattice
Research Subject
Magnetic properties, including the presence or absence of a compensation point, and the effects of nearest-neighbour interaction and single-ion anisotropy on the system
Publication Details
Publication Date
2000-05-01
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