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P Orbital Flat Band and Dirac Cone in the Electronic Honeycomb Lattice.

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.

SUBMITTER: Gardenier TS

PROVIDER: S-EPMC7596780 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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p Orbital Flat Band and Dirac Cone in the Electronic Honeycomb Lattice.

Gardenier Thomas S TS van den Broeke Jette J JJ Moes Jesper R JR Swart Ingmar I Delerue Christophe C Slot Marlou R MR Smith C Morais CM Vanmaekelbergh Daniel D

ACS nano 20201005 10

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 electr ...[more]

PMID: 32991147

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