Honeycomb Boron on Al(111): From the Concept of Borophene to the Two-Dimensional Boride.

ABSTRACT: A great variety of two-dimensional (2D) boron allotropes (borophenes) were extensively studied in the past decade in the quest for graphene-like materials with potential for advanced technological applications. Among them, the 2D honeycomb boron is of specific interest as a structural analogue of graphene. Recently it has been synthesized on the Al(111) substrate; however it remains unknown to what extent does honeycomb boron behave like graphene. Here we elucidate the structural and electronic properties of this unusual 2D material with a combination of core-level X-ray spectroscopies, scanning tunneling microscopy, and DFT calculations. We demonstrate that in contrast to graphene on lattice-mismatched metal surfaces, honeycomb boron cannot wiggle like a blanket on Al(111), but rather ind

SUBMITTER: Preobrajenski AB 

PROVIDER: S-EPMC8482755 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature