The first-principles band theory paradigm has been a key player not only in the process of
discovering new classes of topologically interesting materials, but also for identifying salient …

A wide range of materials, like d-wave superconductors, graphene, and topological
insulators, share a fundamental similarity: their low-energy fermionic excitations behave as …

We model the newly synthesized magic-angle-twisted bilayer graphene superconductor with
two px, y-like Wannier orbitals on the superstructure honeycomb lattice, where the hop** …

Various phenomena occur when two-dimensional materials, such as graphene or transition
metal dichalcogenides, are assembled into bilayers with a twist between the individual …

We study superconductivity of twisted bilayer graphene with local and nonlocal attractive
interactions. We obtain the superfluid weight and Berezinskii-Kosterlitz-Thouless (BKT) …

The problem of electron-electron interactions in graphene is reviewed. Starting from the
screening of long-range interactions in these systems, the existence of an emerging Dirac …

Chiral superconductivity, which breaks time-reversal symmetry, can exhibit a wealth of
fascinating properties that are highly sought after for nanoscience applications. We identify …

We show here that the carrier mobility in the novel sp–sp2 hybridization planar 6, 6, 12-
graphyne sheet should be even larger than that in the graphene sheet. Both graphyne and …

To obtain an effective many-body model of graphene and related materials from first
principles we calculate the partially screened frequency dependent Coulomb interaction. In …

The pairing symmetry of the Hubbard Hamiltonian on a triangle lattice with a nearly flat low-
energy band is studied with the determinant quantum Monte Carlo method (DQMC). We …