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Critical properties of an antiferromagnetic decorated Ising model on a square lattice
Low Temperature Physics ( IF 0.6 ) Pub Date : 2020-10-01 , DOI: 10.1063/10.0001913
V. A. Mutailamov 1 , A. K. Murtazaev 1
Affiliation  

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 H0 = 4, the model experiences partial degeneracy in the ground state. At field values close to H0 = 4, heat-capacity splitting is observed.

中文翻译:

方格上反铁磁装饰 Ising 模型的临界性质

作者使用计算物理方法研究了外部磁场中方形晶格上二维装饰 Ising 模型的静态临界行为。特别考虑了一种特殊情况,即仅在装饰自旋和位于晶格位置的自旋之间观察到反铁磁交换相互作用。已经表明,在 H0 = 4 的外部磁场下,模型在基态经历部分简并。在接近 H0 = 4 的场值处,观察到热容量分裂。
更新日期:2020-10-01
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