论文标题
有效的低能汉密尔顿人和单层的非常规Landau级别的光谱c $ _3 $ n
Effective low energy Hamiltonians and unconventional Landau level spectrum of monolayer C$_3$N
论文作者
论文摘要
我们得出低能有效的$ \ mathbf {k} \ cdot \ mathbf {p} $ hamiltonians，用于单层C $ _ {3} $ n，在$γ$和Brillouin区域的$γ$和$ m $点，可以找到带有传导和Valence频段的频段边缘。我们对电子带对对称性的分析有助于更好地理解该材料光学特性的最新AB-Initio计算结果[1,2]。我们还计算Landau级别的频谱。我们发现，在$γ$点处的退化导带中的Landau水平光谱获得了让人联想到双层石墨烯中相应结果的属性，但也存在重要差异。此外，由于有效的质量，$ n $的样品可能具有有趣的电子电子相互作用效果。
We derive a low-energy effective $\mathbf{k}\cdot\mathbf{p}$ Hamiltonians for monolayer C$_{3}$N at the $ Γ$ and $ M $ 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[1,2] 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, $n$-doped samples may host interesting electron-electron interaction effects.
