磁场对简并反铁磁Ising模型的影响

IF 2.8 3区物理与天体物理 Q2 PHYSICS, CONDENSED MATTER

Physica B-condensed Matter Pub Date : 2025-09-25 DOI:10.1016/j.physb.2025.417822

K.Sh. Murtazaev, M.A. Magomedov, M.R. Dzhamaludinov, M.K. Ramazanov, A.K. Murtazaev

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引用次数: 0

摘要

利用复制蒙特卡罗算法，我们研究了外磁场存在下具有竞争交换相互作用的体心立方晶格上的反铁磁Ising模型。研究了外加磁场对该模型热力学和磁性能的影响。得到了主要热力学参数与温度和场的关系。建立了临界温度随外加磁场变化的相图。在较宽的磁场范围内测定了基态磁结构。

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Effect of a magnetic field on the degenerate antiferromagnetic Ising model

Using the replica Monte Carlo algorithm, we investigated the antiferromagnetic Ising model on a body-centered cubic lattice with competing exchange interactions in the presence of an external magnetic field. The influence of the external magnetic field on the thermodynamic and magnetic properties of this model was studied. Temperature and field dependences of the main thermodynamic parameters were obtained. A phase diagram of the critical temperature as a function of the external magnetic field was constructed for the considered model. The ground-state magnetic structures were determined over a wide range of magnetic fields.

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来源期刊

Physica B-condensed Matter 物理-物理：凝聚态物理

CiteScore

4.90

自引率

7.10%

发文量

703

审稿时长

44 days

期刊介绍： Physica B: Condensed Matter comprises all condensed matter and material physics that involve theoretical, computational and experimental work. Papers should contain further developments and a proper discussion on the physics of experimental or theoretical results in one of the following areas: -Magnetism -Materials physics -Nanostructures and nanomaterials -Optics and optical materials -Quantum materials -Semiconductors -Strongly correlated systems -Superconductivity -Surfaces and interfaces