Theoretical Department, Institute of Physics, VAST, Hanoi, Vietnam.
J Phys Condens Matter. 2010 Oct 27;22(42):425501. doi: 10.1088/0953-8984/22/42/425501. Epub 2010 Oct 7.
Using the T-matrix approach, we study the effect of a Kronig-Penney periodic potential on the electronic states and the transport properties of graphene. The energy band structure and the group velocity of charge carriers are calculated and discussed in detail for potentials with varying amplitudes and barrier-to-well width ratios. The periodic potential is shown to cause a resonant structure and to enhance the magnitude of the conductivity.
我们使用 T 矩阵方法研究了 Kronig-Penney 周期势对石墨烯电子态和输运性质的影响。我们详细计算和讨论了不同振幅和势垒-阱宽度比的周期势的能带结构和载流子群速度。结果表明，周期势会引起共振结构，并增强电导率的大小。
