Topology and symmetry in carbon nanoribbons

Proceedings of RDP online PhD school and workshop "Aspects of Symmetry" — PoS(Regio2021)（2022）

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摘要

BCS-Hubbard model is applied to nanoribbons with zigzag and armchair geometries. Dispersion relations and effective Hamiltonian are derived at symmetric lines for ferromagnetic and antiferromagnetic order. Conserved quantities are found for general case of BCS-Hubbard model.

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Nanoribbons

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