Multilayer Haldane model
| Autor: | Wu, Xi, Zhang, C. X., Zubkov, M. A. |
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| Rok vydání: | 2021 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.ssc.2022.114863 |
| Popis: | We propose the model of layered materials, in which each layer is described by the conventional Haldane model, while the inter - layer hopping parameter corresponds to the ABC stacking. We calculate the topological invariant $N_3$ for the resulting model, which is responsible for the conductivity of intrinsic quantum Hall effect. It has been shown that in a certain range of the values of interlayer hopping parameter, the value of $N_3$ is equal to the number of layers multiplied by the topological invariant of each layer. At the same time this value may be calculated using the low energy effective theory. Comment: Latex, 14 pages, 3 figures |
| Databáze: | arXiv |
| Externí odkaz: |
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