论文标题
磁场中含量的石墨烯量子点的能量水平
Energy Levels of Gapped Graphene Quantum Dot in Magnetic Field
论文作者
论文摘要
我们研究了在能量间隙存在下被无限石墨烯片包围的石墨烯磁量点限制在石墨烯中的载体的能级。特征派是针对山谷$ k $和$ k'$的，而相关的能级是通过使用量子点接口处的边界条件获得的。我们从数值上研究了我们的结果，并表明能量水平在物理参数的适当条件下表现出对称和反对称行为。我们发现，径向概率可以根据角动量为对称性或反间隔性。最后，我们表明能量隙的应用降低了量子点中的电子密度，这表明电子的暂时捕获。
We study the energy levels of carriers confined in a magnetic quantum dot of graphene surrounded by a infinite graphene sheet in the presence of energy gap. The eigenspinors are derived for the valleys $K$ and $K'$, while the associated energy levels are obtained by using the boundary condition at interface of the quantum dot. We numerically investigate our results and show that the energy levels exhibit the symmetric and antisymmetric behaviors under suitable conditions of the physical parameters. We find that the radial probability can be symmetric or antisymmeric according to the angular momentum is null or no-null. Finally, we show that the application of an energy gap decreases the electron density in the quantum dot, which indicates a temporary trapping of electrons.
