The rich magneto-electronic properties of AA-bottom-top (bt) bilayer silicene are investigated using a generalized tight-binding model. The electronic structure exhibits two pairs of oscillatory energy bands in which the lowest conduction and highest valence states of the low-lying pair are away from the K point. The quantized Landau levels (LLs) are classified into various separated groups by the localization behaviors of spatial distributions. The LLs in the vicinity of Fermi energy do not present simple wave function modes which are quite different from other two-dimensional systems. The geometry symmetry, intralayer and interlayer atomic interactions, and effect of a perpendicular magnetic field are responsible for the peculiar LL energy spectra in AA-bt bilayer silicene. This work provides a better understanding of the diverse magnetic quantization phenomena in 2D condensed-matter materials.
@article{arxiv.1905.03983,
title = {Diverse quantization phenomena in AA bilayer silicene},
author = {Po-Hsin Shih and Thi-Nga Do and Godfrey Gumbs and Danhong Huang and Hai Duong Pham and Ming-Fa Lin},
journal= {arXiv preprint arXiv:1905.03983},
year = {2019}
}