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arXiv 2401.09360cond-mat.stat-mech
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反铁磁耦合双层伊辛模型的动力学行为

Dynamic behavior of the antiferromagnetically coupled bilayer Ising model

C. Ekiz, R. Erdem, D. Semet

AI总结:

本文用路径概率法和团簇变分法最低阶近似研究由两个铁磁单层反铁磁耦合、自旋分别为1/2和1的双层伊辛模型,给出磁化强度数值结果、相图及时间演化,揭示其动力学与亚稳态行为。

摘要:

利用路径概率法和团簇变分法的最低阶近似,我们研究了一个双层磁性系统的动力学与平衡性质,该系统由两个铁磁单层组成,并以反铁磁方式耦合,且具有不同自旋(σ=1/2 和 S=1)。首先,给出了在不同物理参数影响下单层磁化强度和总磁化强度的数值结果,并讨论了双层系统的相图。然后,由于路径概率方法已被证实是研究亚稳态存在的有效方法,我们考察了单层磁化强度和总磁化强度的时间演化。

英文摘要:

Using the path probability and lowest approximation of cluster variation method, we study the dynamic and equilibrium properties of a bilayer magnetic system, consisting of two ferromagnetic monolayers antiferromagnetically coupled for different spins $(σ=1/2$ and $S=1)$. Firstly, numerical results of the monolayer and total magnetizations are presented under the effect of the diverse physical parameters, and the phase diagrams of bilayer system are discussed. Then, since it is well established that the path probability method is an effective method for the existence of metastable states, the time evolution of monolayer- and total magnetizations is investigated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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