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

KANDEMİR B. S., Akay D.

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

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 384
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.jmmm.2015.02.019
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.101-105
  • Anahtar Kelimeler: Topological defects, Graphene cones, Coulomb impurity, ELECTRONIC-PROPERTIES, SCATTERING, PARTICLES, PHASES, STATES
  • Ankara Üniversitesi Adresli: Evet

Özet

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,