Low density ferromagnetism in biased bilayer graphene

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dc.creatorCastro, Eduardo V.
dc.creatorPeres, N. M. R.
dc.creatorStauber, T.
dc.creatorSilva, N. A. P.
dc.date2007-11-05
dc.date2008-05-05
dc.date.accessioned2026-07-07T09:36:33Z
dc.date.available2026-07-07T09:36:33Z
dc.descriptionWe compute the phase diagram of a biased graphene bilayer. The existence of a ferromagnetic phase is discussed with respect both to carrier density and temperature. We find that the ferromagnetic transition is first order, lowering the value of $U$ relatively to the usual Stoner criterion. We show that in the ferromagnetic phase the two planes have unequal magnetization and that the electronic density is hole like in one plane and electron like in the other.
dc.description4 pages, 4 figures, added section on disorder and gamma_3 effects
dc.identifierhttps://arxiv.org/abs/0711.0758
dc.identifierhttp://arxiv.org/abs/0711.0758
dc.identifierPhys. Rev. Lett. 100, 186803 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.186803
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/160162
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStrongly Correlated Electrons
dc.titleLow density ferromagnetism in biased bilayer graphene
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