Edge states of zigzag boron nitride nanoribbons

Fawei Zheng, Ken Ichi Sasaki, Riichiro Saito, Wenhui Duan, Bing Lin Gu

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Tight-binding (TB) calculation for zigzag boron nitride nanoribbons (ZBNNRs) is presented. The TB parameters are obtained so as to reproduce density functional calculation. The analytical expressions of boron (nitrogen) edge states that lie near the bottom (top) of conductance (valence) bands are given. The modification of the potential near the edge is found to be important in explaining the small energy dispersion of the edge states. The energy band gap of ZBNNR decreases with increasing ribbon width, which is explained by the edge potential. We also discuss the half metallicity for ZBNNR by considering the Hubbard-type Coulomb interaction.

Original languageEnglish
Article number074713
Journaljournal of the physical society of japan
Volume78
Issue number7
DOIs
Publication statusPublished - 2009 Jul 1

Keywords

  • Boron nitride
  • Edge states
  • Half metallicity
  • Snanoribbons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Edge states of zigzag boron nitride nanoribbons'. Together they form a unique fingerprint.

Cite this