Electronic structures and optical absorption of multilayer graphenes

摘要: Abstract We study the electronic structures and optical absorption spectra of multilayer graphenes in effective mass approximation. decompose Hamiltonian graphene with an arbitrary thickness into smaller subsystems effectively identical to monolayer or bilayer graphene, express spectrum as a summation over subsystems. include full band parameters which compose bulk graphite, closely their effects on structure. found that particular destroying electron–hole symmetry can affect through shift edge.