RT Journal Article
T1 Robustness of type-II Dirac cones in biphenylene: From nanoribbons to symmetric bilayer stacking
A1 Lage L., Lucas
A1 Arroyo Gascón, Olga
A1 Chico Gómez, Leonor María
A1 Latgé, Andrea
AB The electronic properties of one- and two-dimensional biphenylene-based systems, such as nanoribbons and bilayers, are studied within a unified approach. Besides the bilayer with direct (AA) stacking, we found two additional symmetric stackings for bilayer biphenylene that we denote by AB, in analogy with bilayer graphene, and AX, which can be derived by a small translation (slip) from the AA bilayer, with distinct electronic band structures. We combine first-principles calculations with a long-range tight-binding model to provide a realistic effective description of these biphenylene materials. Our approach provides a global framework to analyze realistically the robustness of the characteristic type-II Dirac cones present in all the bilayers studied and of the nanoribbons. In particular, we capture the opening in the Dirac cone for certain nanoribbons, which we relate to the symmetries of the system, as well as the variations caused by different stackings. We expect that these structures will constitute an avenue to explore novel physics, as they occur with bilayer graphene and the one-dimensional derivatives of graphene, such as nanoribbons and nanotubes.
PB American Physical Society
SN 2469-9950
YR 2024
FD 2024-10-17
LK https://hdl.handle.net/20.500.14352/119941
UL https://hdl.handle.net/20.500.14352/119941
LA eng
NO L. L. Lage, O. Arroyo-Gascón, Leonor Chico, and A. Latgé, Robustness of type-II Dirac cones in biphenylene: From nanoribbons to symmetric bilayer stacking, Phys. Rev. B 110, 165423, 2024
NO Ministério da Ciência, Tecnologia e Inovações (Brasil)
NO Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil)
NO Agencia Estatal de Investigación (España)
NO Ministerio de Ciencia e Innovación (España)
NO European Comission
NO Comunidad de Madrid
DS Docta Complutense
RD 24 dic 2025