Discovery of 2D Anisotropic Dirac Cones.
basic_science · Level V
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- Record sourced from PubMed, PMID 29171690.
- Also identified by DOI 10.1002/adma.201704025.
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Abstract
2D anisotropic Dirac cones are observed in χ<sub>3</sub> borophene, a monolayer boron sheet, using high-resolution angle-resolved photoemission spectroscopy. The Dirac cones are centered at the X and X' points. The data also reveal that the hybridization between borophene and Ag(111) is very weak, which explains the preservation of the Dirac cones. As χ<sub>3</sub> borophene has been predicated to be a superconductor, the results may stimulate further research interest in the novel physics of borophene, such as the interplay between Cooper pairs and the massless Dirac fermions.