95 citations · 442 across the 22 of their papers we have counts for
5 papers · 1 filter
One-dimensional flat bands and Dirac cones in narrow zigzag dice lattice ribbons
Lei Hao
We show that four narrow zigzag dice lattice ribbons, which have the minimal widths among their separate categories, constitute a unique collection of systems to study physics rela…
Zigzag dice lattice ribbons: Distinct edge morphologies and structure-spectrum correspondences
Lei Hao
Ribbons of two-dimensional lattices have properties depending sensitively on the morphology of the two edges. For regular ribbons with two parallel straight edges, the atomic chain…
Valley-contrasting interband transitions and excitons in symmetrically biased dice model
Lei Hao
We study the exciton states in the symmetrically biased dice model, the electronic structures of which have an isolated flat band between two dispersive bands. At 1/3 or 2/3 fillin…
Graphane with carbon dimer defects: Robust in-gap states and a scalable two-dimensional platform for quantum computation
Lei Hao, Hong-Yan Lu, C. S. Ting
We study the energy level structures of the defective graphane lattice, where a carbon dimer defect is created by removing the hydrogen atoms on two nearest-neighbor carbon sites.…
Enhanced Thermoelectric Power in Dual-Gated Bilayer Graphene
Chang-Ran Wang, Wen-Sen Lu, Lei Hao +5
Thermoelectric power of a material, typically governed by its band structure and carrier density, can be varied by chemical doping that is often restricted by solubility of the dop…