Format

Send to

Choose Destination
Phys Rev Lett. 2014 Jul 25;113(4):046804. Epub 2014 Jul 24.

Phase coexistence and metal-insulator transition in few-layer phosphorene: a computational study.

Author information

1
Physics and Astronomy Department, Michigan State University, East Lansing, Michigan 48824, USA.

Abstract

Based on ab initio density functional calculations, we propose γ-P and δ-P as two additional stable structural phases of layered phosphorus besides the layered α-P (black) and β-P (blue) phosphorus allotropes. Monolayers of some of these allotropes have a wide band gap, whereas others, including γ-P, show a metal-insulator transition caused by in-layer strain or changing the number of layers. An unforeseen benefit is the possibility to connect different structural phases at no energy cost. This becomes particularly valuable in assembling heterostructures with well-defined metallic and semiconducting regions in one contiguous layer.

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center