论文标题

蒙特卡洛研究了Ising spin-1平方双层中磁滞回路的温度依赖性

A Monte Carlo study on the temperature dependence of hysteresis loops in Ising Spin-1 Square Bilayers

论文作者

Chandra, Soham

论文摘要

本文使用大都市蒙特卡洛模拟来研究带有方形单层的自旋-1双层的磁滞回路的温度依赖性。在该系统中,原子在平面内相互作用,与铁磁或抗铁磁间的平面间相互作用。详细讨论了哈密顿参数的四个不同组合对磁滞行为的影响。磁滞回路的几何形状取决于如何组合交换耦合。使用铁磁层中膜耦合,只有中央磁滞回路打开,而对于抗磁磁体,磁滞回路成为耦合强度特定组合的双回路。此外,在所有这些情况下,随着温度的逐渐降低,滞后环的面积也会生长。

A Metropolis Monte Carlo simulation is used in this paper to investigate the temperature dependency of the hysteresis loops of a spin-1 bilayer with square monolayers. In this system, the atoms interact ferromagnetically in-plane, with either ferromagnetic or antiferromagnetic interplane interactions. The effects of four distinct combinations of the Hamiltonian parameters on the hysteresis behaviours are discussed in detail. The geometry of the hysteresis loops changes depending on how the exchange couplings are combined. With ferromagnetic interlayer coupling, only the central hysteresis loop opens while for the antiferromagnetic case, the hysteresis loop becomes a double loop for the specific combination of coupling strengths. Additionally, in all these cases, the area of the hysteresis loops grows with the gradual lowering of the temperature.

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