Green's functions and DOS for some 2D lattices
arXiv:2008.05544 · doi:10.4236/graphene.2021.101001
Abstract
In this note we present the Green's functions and density of states for the most frequently encountered 2D lattices: square, triangular, honeycomb, kagome, and Lieb lattice. Though the results are well know, we hope that their derivation performed in a uniform way is of some pedagogical value.
Latex, 6 pages, 5 eps files. As accepted for publication in Graphene