Controlling topological electronic structure of multifunctional MXene layer

Balci E., Akkus U. O., Berber S.

APPLIED PHYSICS LETTERS, vol.113, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 113
  • Publication Date: 2018
  • Doi Number: 10.1063/1.5042828
  • Journal Name: APPLIED PHYSICS LETTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
  • Gazi University Affiliated: No

Abstract

The electric field-and charge transfer-induced topological properties of Sc2C(OH)(2) MXene layers are reported. The system transforms from a trivial insulator to a topological insulator and to a metal. The s-pd orbitals are exchanged during the topological phase transition. The modification of the bandgap along with the transition to the topological phase reveals that Sc2C(OH)(2) MXene is a multifunctional material. The nearly free states, which form ideal conduction channels, are responsible for the topological electronic band structures. Published by AIP Publishing.