Histogram Monte Carlo study of the next-nearest-neighbor Ising antiferromagnet on a stacked triangular lattice.
Histogram Monte Carlo study of the next-nearest-neighbor Ising antiferromagnet on a stacked triangular lattice.
复制标题
DOI：
10.1103/physrevb.47.14312
复制
发表时间：
1993-01
期刊：
影响因子：
--
通讯作者：
Plumer;Mailhot;Ducharme;Caillé;Diep
中科院分区：
文献类型：
--
作者：
Plumer;Mailhot;Ducharme;Caillé;Diep
本文用直方图蒙特卡罗方法研究了具有反铁磁第一和第二近邻面内相互作用的叠层三角晶格上的伊辛模型的临界性质。结果，结合最近确定的相图，强烈表明，从周期-3有序态的顺磁相的过渡仍然在xy普适性类。这一结论与以前提出的平均场三临界行为相反。
Critical properties of the Ising model on a stacked triangular lattice, with antiferromagnetic first and second-neighbor in-plane interactions, are studied by extensive histogram Monte Carlo simulations. The results, in conjunction with the recently determined phase diagram, strongly suggest that the transition from the period-3 ordered state to the paramagnetic phase remains in the xy universality class. This conclusion is in contrast with a previous suggestion of mean-field tricritical behavior.