Elastic deformations and Wigner-Weyl formalism in graphene

Autor:	Fialkovsky, I. V., Zubkov, M. A.
Rok vydání:	2019
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics High Energy Physics - Lattice
Druh dokumentu:	Working Paper
Popis:	We discuss the tight-binding models of solid state physics with the $Z_2$ sublattice symmetry in the presence of elastic deformations, and their important particular case -the tight binding model of graphene. In order to describe the dynamics of electronic quasiparticles we explore Wigner-Weyl formalism. It allows to calculate the two-point Green's function in the presence of both slowly varying external electromagnetic fields and the inhomogeneous modification of the hopping parameters resulted from the elastic deformations. The developed formalism allows us to consider the influence of elastic deformations and the variations of magnetic field on the quantum Hall effect. Comment: Latex, 34 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1905.11097 Zobrazit plný text záznamu View this record from Arxiv