Magnetic phase diagram of the ferromagnetically stacked triangular Ising antiferromagnet
Magnetic phase diagram of the ferromagnetically stacked triangular Ising antiferromagnet
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DOI：
10.1016/0378-4371(95)00280-4
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发表时间：
1994-11
影响因子：
3.3
通讯作者：
M. Plumer;A. Mailhot
中科院分区：
文献类型：
--
作者：
M. Plumer;A. Mailhot
本文给出了具有反铁磁面内和铁磁面间相互作用的叠层三角晶格上伊辛模型的磁场-温度相图的直方图蒙特-卡罗模拟结果。在顺磁过渡边界沿着的三个点上给出了这个阻挫系统的尺度标度结果，这强烈地表明在低场下是一条三临界点线，在高场下是一条一阶过渡线。这些结果进行了比较，从传统的平均场理论，以及从Monte Carlo平均场计算相应的相图。
Histogram Monte-Carlo simulation results are presented for the magnetic-field-temperature phase diagram of the Ising model on a stacked triangular lattice with antiferromagnetic intraplane and ferromagnetic interplane interactions. Finite-size scaling results for this frustrated system at three points along the paramagnetic transition boundary are presented which strongly suggest a line of triciritical points at low field and a first-order transition line at higher fields. These results are compared with the corresponding phase diagrams from conventional mean-field theory as well as from Monte Carlo mean-field calculations.