Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 24, 2015
Previous Article Next Article

Two-dimensional silicon monolayers generated on c-BN(111) substrate

Author affiliations

Abstract

Silicene, a buckled two-dimensional honeycomb structure of silicon, has been experimentally synthesized on very few substrates. Furthermore, synthesizing silicene with a Dirac point is another hot research area. However, only silicene grown on Ag(111) has been reported to have a Dirac point, which has lowered the expectations of researchers. Here, three Si monolayer structures, a Si chain-type structure, a two-dimensional hexagonal close packed compound structure, and a two-dimensional hexagonal close packed structure, are generated on a c-BN(111) substrate using a particle-swarm optimization algorithm implemented in CALYPSO code. Band structure calculations show that all three structures exhibit a metallic nature. In particular, due to the absolutely flat conformation of the latter two structures, a linear dispersion exists near the Fermi energy level, indicating that charge carriers can transport like massless Dirac fermions. Our results open an alternative way of searching for other two-dimensional silicon monolayers with Dirac points.

Graphical abstract: Two-dimensional silicon monolayers generated on c-BN(111) substrate

Back to tab navigation

Publication details

The article was received on 19 Mar 2015, accepted on 19 May 2015 and first published on 22 May 2015


Article type: Communication
DOI: 10.1039/C5CP01601K
Citation: Phys. Chem. Chem. Phys., 2015,17, 15694-15700

  •   Request permissions

    Two-dimensional silicon monolayers generated on c-BN(111) substrate

    H. Wu, Y. Qian, S. Lu, E. Kan, R. Lu, K. Deng, H. Wang and Y. Ma, Phys. Chem. Chem. Phys., 2015, 17, 15694
    DOI: 10.1039/C5CP01601K

Search articles by author

Spotlight

Advertisements