Shahbazi Mohsen, Davoodi Jamal, Boochani Arash, Khanjani Hadi, Kormányos Andor
Department of Physics, Faculty of Science, University of Zanjan, Zanjan P.O. Box 45195-313, Iran.
Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah P.O. Box 671791-7855, Iran.
Nanomaterials (Basel). 2022 Dec 8;12(24):4375. doi: 10.3390/nano12244375.
We derive low-energy effective k·p Hamiltonians for monolayer C3N at the Γ and points of the Brillouin zone, where the band edge in the conduction and valence band can be found. Our analysis of the electronic band symmetries helps to better understand several results of recent ab initio calculations for the optical properties of this material. We also calculate the Landau-level spectrum. We find that the Landau-level spectrum in the degenerate conduction bands at the Γ point acquires properties that are reminiscent of the corresponding results in bilayer graphene, but there are important differences as well. Moreover, because of the heavy effective mass, -doped samples may host interesting electron-electron interaction effects.
我们推导了单层C3N在布里渊区Γ点和 点处的低能有效k·p哈密顿量，在这些点可以找到导带和价带的带边。我们对电子能带对称性的分析有助于更好地理解近期关于该材料光学性质的一些从头算计算结果。我们还计算了朗道能级谱。我们发现，Γ点简并导带中的朗道能级谱具有一些让人联想到双层石墨烯相应结果的性质，但也存在重要差异。此外，由于有效质量较大，n型掺杂样品可能会呈现出有趣的电子-电子相互作用效应。
