2006/12/19 by V. P. Gusynin, Gusynin, V. P., V. A. Miransky +5
Materials Science · Physics and Astronomy · #Condensed matter physics #Coupling (piping) #FOS: Physical sciences #Graphene #Graphene research and applications #Magnetic field #Magnetic properties of thin films #Materials science #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Phase transition #Physics #Quantum Hall effect #Quantum and electron transport phenomena #Quantum mechanics #Spin (aerodynamics) #Strongly Correlated Electrons (cond-mat.str-el) #Zeeman effect #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/0612488
published in arXiv (Cornell University) (Cornell University) · Revtex4, 10 pages, 6 figures
arxiv created 2006/12/19 · openalex publication_date 2006/12/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We suggest that physics underlying the recently observed removal of sublattice and spin degeneracies in graphene in a strong magnetic field describes a phase transition connected with the generation of excitonic and spin gaps. The strong-coupling regime is described using a phenomenological model with enhanced Zeeman splitting (spin gap) and excitonic gaps. The experimental form of the Hall conductivity σxy with the additional ν= 0, ± 1 plateaus is reproduced. The form of σxy in the case of a strong-coupling regime with no enhanced Zeeman splitting is also discussed.