Le Dai-Nam, Le Van-Hoang, Roy Pinaki
Atomic Molecular and Optical Physics Research Group, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
J Phys Condens Matter. 2020 Jun 19;32(38). doi: 10.1088/1361-648X/ab940a.
In this paper, we use supersymmetry formalism to study (2 + 1) dimensional Dirac-Weyl equation describing the motion of electrons in different axially symmetric carbon allotrope surfaces under the influence of crossed electromagnetic fields. In particular, we consider three carbon allotrope with different geometrical shapes and properties: open, half-open and closed geometries. The effect of the electric field and geometry on Landau levels and orbital magnetization has been examined. It has been shown that at a critical electric field the orbital magnetization exhibits a discontinuity which is associated with the collapse of Landau levels.
在本文中，我们使用超对称形式体系来研究（2 + 1）维狄拉克 - 外尔方程，该方程描述了在交叉电磁场影响下电子在不同轴对称碳同素异形体表面的运动。特别地，我们考虑了具有不同几何形状和性质的三种碳同素异形体：开放、半开放和封闭几何形状。研究了电场和几何形状对朗道能级和轨道磁化的影响。结果表明，在临界电场下，轨道磁化表现出不连续性，这与朗道能级的崩塌有关。
