155 citations · 359 across the 6 of their papers we have counts for
6 papers
The Many-Body Ground State Manifold of Flat Band Interacting Hamiltonian for Magic Angle Twisted Bilayer Graphene
Kevin D. Stubbs, Michael Ragone, Allan H. MacDonald +1
At a magic relative twist angle, magic angle twisted bilayer graphene (MATBG) has an octet of flat bands that can host strong correlation physics when partially filled. A key theor…
The Influence of Remote Bands on Exciton Condensation in Double-Layer Graphene
M. P. Mink, A. H. MacDonald, H. T. C. Stoof +1
We examine the influence of remote bands on the tendency toward exciton condensation in a system consisting of two parallel graphene layers with negligible interlayer tunneling. We…
Magneto-electric coupling in zigzag graphene nanoribbons
J. Jung, A. H. Macdonald
Zigzag graphene nanoribbons can have magnetic ground states with ferromagnetic, antiferromagnetic, or canted configurations, depending on carrier density. We show that an electric…
Theory of the Magnetic-Field-Induced Insulator in Neutral Graphene
J. Jung, A. H. MacDonald
Recent experiments have demonstrated that neutral graphene sheets have an insulating ground state in the presence of an external magnetic field. We report on a -band tight-bindi…
Theory of inter-edge superexchange in zigzag edge magnetism
J. Jung, T. Pereg-Barnea, A. H. MacDonald
A graphene nanoribbon with zigzag edges has a gapped magnetic ground state with an antiferromagnetic inter-edge superexchange interaction. We present a theory based on asymptotic p…
Comment on ``Coexistence of superconductivity and ferromagnetism in ferromagnetic metals"
Yogesh N. Joglekar, Allan H. MacDonald
We argue that a single-band itinerant electron model with short-range interactions, proposed by Karchev et al. (cond-mat/9911489) and investigated further by Jackiewicz et al. (con…