Options
Exchange interactions and frustrated magnetism in single-side hydrogenated and fluorinated graphene
Publikationstyp
Journal Article
Publikationsdatum
2013-08-22
Sprache
English
Author
Institut
TORE-URI
Volume
88
Issue
8
Article Number
081405
Citation
Phys. Rev. B 88, 081405(R) (2013) 8 (88): 081405 (2013)
Publisher DOI
Scopus ID
ArXiv ID
Publisher
The American Physical Society
Magnetism in single-side hydrogenated (C₂H) and fluorinated (C₂F) graphene is analyzed in terms of the Heisenberg model with parameters determined from first principles. We predict a frustrated ground state for both systems, which means the instability of collinear spin structures and sheds light on the absence of a conventional magnetic ordering in defective graphene demonstrated in recent experiments. Moreover, our findings suggest a highly correlated magnetic behavior at low temperatures offering the possibility of a spin-liquid state.
Schlagworte
Physics - Mesoscopic Systems and Quantum Hall Effect
Physics - Mesoscopic Systems and Quantum Hall Effect
Physics - Materials Science
Physics - Strongly Correlated Electrons
DDC Class
530: Physik
600: Technik
620: Ingenieurwissenschaften