An equivalence between monolayer and bilayer honeycomb lattices
arXiv:1205.4459 · doi:10.1140/epjb/e2012-30570-7
Abstract
In this brief report, we show the equivalence between the tight-binding descriptions of the monolayer and bilayer honeycomb lattices. With appropriate value of the third nearest neighbors coupling, the Hamiltonian for a monolayer is equivalent to the low energy effective Hamiltonian for bilayer in the presence of trigonal warping. A simple physical argument is provided to explain this correspondance.
4 pages, 4 figures
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- Topological Route to New and Unusual Coulomb Spin Liquids
- Tunable orbital susceptibility in - tight-binding models
- Quantum topology identification with deep neural networks and quantum walks
- Neutral magic-angle bilayer graphene: Condon instability and chiral resonances
- Unprotected quadratic band crossing points and quantum anomalous Hall effect in FeB2 monolayer
- Quantifying the fragility of unprotected quadratic band crossing points
- Tight binding approximation for bilayer graphene and nanotube structures: from commensurability to incommensurability between the layers
- Dynamically Characterizing the Structures of Dirac Points via Wave Packets