Pseudo-Spin-Orbit Coupling in Graphene within Hydrogenic Impurity Context
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, cilt.82, sa.9, 2013 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 82 Sayı: 9
- Basım Tarihi: 2013
- Doi Numarası: 10.7566/jpsj.82.094706
- Dergi Adı: JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Anahtar Kelimeler: graphene, impurities in graphene, spin-orbit interaction, QUANTUM, ELECTRONS
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Ankara Üniversitesi Adresli: Evet
Özet
In graphene, we report the first theoretical demonstration of how a pseudo-spin-orbit interaction can be controlled by tuning a uniform magnetic field and/or by changing the strength of a long-range Coulomb-like impurity (adatom), as well as the gap parameter. In the impurity context, we find that the pseudo-spin-orbit interaction energy may be enhanced by increasing the strength of the magnetic field and/or by decreasing the band gap mass term. Additionally, it may be strongly enhanced by increasing the impurity strength.