p Orbital Flat Band and Dirac Cone in the Electronic Honeycomb Lattice
Source abstract
Abstract
Theory anticipates that the in-plane px, py orbitals in a honeycomb lattice lead to potentially useful quantum electronic phases. So far, p orbital bands were only realized for cold atoms in optical lattices and for light and exciton-polaritons in photonic crystals. For electrons, in-plane p orbital physics is difficult to access since natural electronic honeycomb lattices, such as graphene and silicene, show strong s-p hybridization. Here, we report on electronic honeycomb lattices prepared on a Cu(111) surface in a scanning tunneling microscope that, by design, show (nearly) pure orbital bands, including the p orbital flat band and Dirac cone.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Topological Materials and Phenomena · Graphene research and applications · Advanced Condensed Matter Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Debye Institute for Nanomaterials Science, Utrecht University, P.O. Box 80.000, 3508 TA Utrecht, The Netherlands
Institute for Theoretical Physics, Utrecht University, P.O. Box 80.089, 3508 TB Utrecht, The Netherlands
Université de Lille, CNRS, Centrale Lille, Yncréa-ISEN, Université Polytechnique Hauts-de-France, UMR 8520−IEMN, F-59000 Lille, France
Funding
Stichting voor Fundamenteel Onderzoek der Materie · H2020 European Research Council
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