Critical properties of an antiferromagnetic decorated Ising model on a square lattice

被引：4
|
作者：
Mutailamov, V. A. [1 ]
Murtazaev, A. K. [1 ]
机构：
[1] Russian Acad Sci, Dagestan Fed Res Ctr, HI Amirkhanov Inst Phys, Makhachkala 367003, Russia
来源：
LOW TEMPERATURE PHYSICS | 2020年 / 46卷 / 10期
关键词：
Ising model; frustrations; decorated lattice; numerical simulation; FRUSTRATION;
D O I：
10.1063/10.0001913
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The authors have investigated the static critical behavior of a two-dimensional decorated Ising model on a square lattice in an external magnetic field, using computational physics methods. Particular consideration has been given to a special case when antiferromagnetic exchange interaction is observed only between decorated spins and spins located at lattice sites. It has been shown that at an external magnetic field of H-0 = 4, the model experiences partial degeneracy in the ground state. At field values close to H-0 = 4, heat-capacity splitting is observed.
引用
收藏
页码：1016 / 1020
页数：5
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