Tight-Binding#
The generic real-space and reciprocal-space machinery: the square
lattice, whose single band is simple enough to check by hand, as the
smallest complete illustration of Bloch’s theorem; a graphene flake
diagonalized directly and its Bloch band structure along a k-path,
including Wallace’s 1947 linear (Dirac) dispersion near the K point;
and tbkit.plot.Plot’s lattice, spectrum, density-of-states, and
eigenstate-intensity plots.
Graphene: Real-Space Flake and Reciprocal-Space Bands
Graphene: Real-Space Flake and Reciprocal-Space Bands
The Square Lattice: Bloch’s Theorem in its Simplest Form
The Square Lattice: Bloch's Theorem in its Simplest Form