arXiv:1910.01585 [cond-mat.mes-hall]AbstractReferencesReviewsResources
Hall conductivity of strained $Z_2$ crystals
I. V. Fialkovsky, M. A. Zubkov
Published 2019-10-03Version 1
We establish topological nature of Hall conductivity of graphene and other $Z_2$ crystals in 2D and 3D in the presence of inhomogeneous perturbations. To this end the lattice Weyl-Wigner formalism is employed. The non-uniform mechanical stress is considered, along with spatially varying magnetic field. The relation of the obtained topological invariant to level counting is clarified.
Comments: Latex, 13 pages, prepared for the proceedings of ICNFP2019
Categories: cond-mat.mes-hall
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