Wedge energy bands of monolayer black phosphorus: a first-principles study
Abstract
On the basis of first-principles calculations, we present intriguing electronic properties of halogen-striped functionalized monolayer black phosphorus. The halogen-striped monolayer black phosphorus is found to have a wedge energy band with the energy-momentum relation of E\propto {{p}y} when the stripe-stripe distance is smaller than ~40 Å. Our tight-binding study shows that the wedge energy band occurs when 2-atom basis 1D lattices are periodically repeated aligned with each other in a 2D lattice. We also discuss the possible applications of this wedge energy band in electron supercollimation with high mobility or severely anisotropic electronic transport, which can be used for the development of optics-like nano-electronics.
- Publication:
-
Journal of Physics Condensed Matter
- Pub Date:
- August 2016
- DOI:
- 10.1088/0953-8984/28/30/305301
- Bibcode:
- 2016JPCM...28D5301P