Broken-Symmetry States of Dirac Fermions in Graphene with A Partially Filled High Landau Level

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dc.creatorWang, Hao
dc.creatorSheng, D. N.
dc.creatorSheng, L.
dc.creatorHaldane, F. D. M.
dc.date2007-08-02
dc.date2008-03-28
dc.date.accessioned2026-07-07T09:29:00Z
dc.date.available2026-07-07T09:29:00Z
dc.descriptionWe report on numerical study of the Dirac fermions in partially filled N=3 Landau level (LL) in graphene. At half-filling, the equal-time density-density correlation function displays sharp peaks at nonzero wavevectors $\pm {\bf q^{*}}$. Finite-size scaling shows that the peak value grows with electron number and diverges in the thermodynamic limit, which suggests an instability toward a charge density wave. A symmetry broken stripe phase is formed at large system size limit, which is robust against purturbation from disorder scattering. Such a quantum phase is experimentally observable through transport measurements. Associated with the special wavefunctions of the Dirac LL, both stripe and bubble phases become possible candidates for the ground state of the Dirac fermions in graphene with lower filling factors in the N=3 LL.
dc.descriptionContains are slightly changed. Journal reference and DOI are added
dc.identifierhttps://arxiv.org/abs/0708.0382
dc.identifierhttp://arxiv.org/abs/0708.0382
dc.identifierPRL 100, 116802 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.116802
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/157631
dc.subjectStrongly Correlated Electrons
dc.subjectMesoscale and Nanoscale Physics
dc.titleBroken-Symmetry States of Dirac Fermions in Graphene with A Partially Filled High Landau Level
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