Tuning the pseudo-Zeeman splitting in graphene cones by magnetic field

KANDEMİR B. S., Akay D.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, vol.384, pp.101-105, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 384
  • Publication Date: 2015
  • Doi Number: 10.1016/j.jmmm.2015.02.019
  • Journal Name: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.101-105
  • Keywords: Topological defects, Graphene cones, Coulomb impurity, ELECTRONIC-PROPERTIES, SCATTERING, PARTICLES, PHASES, STATES
  • Ankara University Affiliated: Yes

Abstract

The effect of a homogeneous magnetic field on the energy spectrum of gapped graphene cones with long range charged Coulomb impurity is investigated within the framework of the perturbation theory. It is found that, besides lifting the degeneracy of angular momentum channels due to topological defects, the size of the corresponding splitting is enhanced by the introduction of a homogeneous magnetic field. This indicates that the level splitting may be controlled by the strength of a magnetic field in topological cones. Therefore, our results show that the magnetic field may be used as a tool to tune the pseudoZeeman splitting in graphene cones. (C) 2015 Elsevier By. All rights reserved,