Spin-Orbit Coupling in Transition Metal Dichalcogenide Heterobilayer Flat Bands
Autor: | Rademaker, Louk |
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Rok vydání: | 2021 |
Předmět: | |
Druh dokumentu: | Working Paper |
DOI: | 10.1103/PhysRevB.105.195428 |
Popis: | The valence flat bands in transition metal dichalcogenide (TMD) heterobilayers are shown to exhibit strong intralayer spin-orbit coupling. This is reflected in a simple tight-binding model with spin-dependent complex hoppings based on the continuum model. A perpendicular electric field causes interlayer hybridization, such that the effective model is equivalent to the Kane-Mele model of topological insulators. The proposed model can be used as a starting point to understand interactions and the experimentally observed topological phases. Comment: 5 pages, 4 figures |
Databáze: | arXiv |
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