The magnetic properties of narrow zigzag graphene nanoribbons with periodically embedded atoms of transition metals have been studied in the framework of Heisenberg spin Hamiltonian. We have proposed the simple effective model to give a semi-qualitative description of the peculiarities of magnetization profiles of the systems under consideration. This model can be used for an arbitrary value of spin of the embedded atoms of transition metals. Our analytical and numerical calculations confirm the correctness of the proposed model.

中文翻译：

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窄锯齿形石墨烯纳米带的有效低能自旋模型

在海森堡自旋哈密顿量的框架内研究了具有周期性嵌入过渡金属原子的窄锯齿形石墨烯纳米带的磁性。我们提出了简单有效的模型，以对所考虑系统的磁化曲线的特性进行半定性描述。该模型可用于过渡金属嵌入原子的任意自旋值。我们的分析和数值计算证实了所提出模型的正确性。