Fate of Dirac points in a vortex superlattice

Kamfor M, Dusuel S, Schmidt KP, Vidal J (2011)

Publication Status: Published

Publication Type: Journal article

Publication year: 2011

Journal

Physical Review B American Physical Society

Publisher: AMER PHYSICAL SOC

Book Volume: 84

Journal Issue: 15

DOI: 10.1103/PhysRevB.84.153404

Abstract

We consider noninteracting fermions on the honeycomb lattice in the presence of a magnetic vortex superlattice. It is shown that depending on the superlattice periodicity, a gap may open at zero energy. We derive an expression of the gap in the small-flux limit but the main qualitative features are found to be valid for arbitrary fluxes. This study provides an original example of a metal-insulator transition induced by a strongly modulated magnetic field in graphene. At the same time, our results directly apply to Kitaev's honeycomb model in a vortex superlattice.

Authors with CRIS profile

Kai Phillip Schmidt Professur für Theoretische Physik

Involved external institutions

University of Paris 6 - Pierre et Marie Curie / Université Paris VI Pierre et Marie Curie (UPMC) FR France (FR) Lycée Saint-Louis FR France (FR) Technische Universität Dortmund DE Germany (DE)

How to cite

APA:

Kamfor, M., Dusuel, S., Schmidt, K.P., & Vidal, J. (2011). Fate of Dirac points in a vortex superlattice. Physical Review B, 84(15). https://doi.org/10.1103/PhysRevB.84.153404

MLA:

Kamfor, Michael, et al. "Fate of Dirac points in a vortex superlattice." Physical Review B 84.15 (2011).

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