Journal
PHYSICAL REVIEW LETTERS
Volume 112, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.085502
Keywords
-
Categories
Funding
- National Science Foundation of China [11174152, 51332005, 91222111]
- National 973 Program of China [2012CB921900]
- Program for New Century Excellent Talents in University [NCET-12-0278]
- Fundamental Research Funds for the Central Universities [65121009]
- National Science Foundation [EAR-1114313, DMR-1231586]
- DARPA [W31P4Q1310005, W31P4Q1210008]
- DOE (Computational Materials and Chemical Sciences Network (CMCSN) Project) [DE-AC02-98CH10886]
- CRDF Global [UKE2-7034-KV-11]
- AFOSR [FA9550-13-C-0037]
- Ministry of Education and Science of Russian Federation [8512]
- DOE-BES [DE-AC02-98CH10086]
- [14.A12.31.0003]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1231586] Funding Source: National Science Foundation
Ask authors/readers for more resources
It has been widely accepted that planar boron structures, composed of triangular and hexagonal motifs are the most stable two-dimensional (2D) phases and likely precursors for boron nanostructures. Here we predict, based on an ab initio evolutionary structure search, a novel 2D boron structure with nonzero thickness, which is considerably, by 50 meV/atom, lower in energy than the recently proposed alpha-sheet structure and its analogues. In particular, this phase is identified for the first time to have a distorted Dirac cone, after graphene and silicene the third elemental material with massless Dirac fermions. The buckling and coupling between the two sublattices not only enhance the energetic stability, but also are the key factors for the emergence of the distorted Dirac cone.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available