论文标题
平面铁磁性的细胞构建方法的扩展
An extension of the cell-construction method for the flat-band ferromagnetism
论文作者
论文摘要
我们提出了平面铁磁剂的细胞构建方法的扩展。在相当通用的环境中，我们构建具有高度退化的单电子接地状态的哈伯德模型，并获得这些单电子接地状态的形式表示。通过我们的细胞构建方法，当电子数等于单电子接地态的堕落时，可以设计并显示各种类型的平板哈伯德模型，包括列表上的模型。
We present an extension of the cell-construction method for the flat-band ferromagnetism. In a rather general setting, we construct Hubbard models with highly degenerate single-electron ground states and obtain a formal representation of these single-electron ground states. By our version of the cell-construction method, various types of flat-band Hubbard models, including the one on line graphs, can be designed and shown to have the unique ferromagnetic ground states when the electron number is equal to the degeneracy of the single-electron ground states.
