Figure 1
From: Topological Properties of Electrons in Honeycomb Lattice with Detuned Hopping Energy
Hopping texture in honeycomb lattice and emergent orbitals.
(a) Honeycomb lattice with hopping energies between NN sites: t0 inside hexagons as denoted by the green bonds and t1 between hexagons by red ones. The red dashed hexagon is the primitive cell of triangular lattice with lattice vectors 
, 
and lattice constant 
. Numbers 
in circle index atomic sites within a hexagon. (b) Emergent orbitals in the hexagonal artificial atom.
