The phase diagrams and the magnetizations of graphene-like nanoparticles which are constructed from two paramagnetic honeycomb units and an inter-unit exchange interaction r are investigated by using the effective-field theory with correlations. They have exhibited some characteristic phenomena, such as the reentrant phenomena, when the value of r is larger than r = 1.0 and a transverse field is applied.

中文翻译：

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在施加的横向场中由两个类似石墨烯的Ising纳米粒子之间的交换相互作用引起的独特现象

利用有效场理论和相关性，研究了由两个顺磁性蜂窝单元和单元间交换相互作用r构成的石墨烯状纳米颗粒的相图和磁化强度。当r的值大于r = 1.0且施加了横向场时，它们表现出一些特征性现象，例如折返现象。