School of Physics and Engineering, Zhengzhou University, Zhengzhou, People's Republic of China.
J Phys Condens Matter. 2011 Jul 27;23(29):295301. doi: 10.1088/0953-8984/23/29/295301. Epub 2011 Jun 23.
We investigate the quantum size effect combined with the disorder effect on an armchair graphene nanoribbon with s-wave pairing. In the framework of the Bogoliubov-de Gennes equation, the spatial distribution of the pairing potential is self-consistently determined for both pure and disordered systems. The dependence of the order parameter on the chemical potential is calculated for the zero-disordered case and a gap-like structure with two peaks is found. The relationship of the average pairing potential to the width of ribbon is discussed. Moreover, the disorder effect on the associated behavior is studied.
我们研究了 s 波配对的扶手椅型石墨烯纳米带的量子尺寸效应与无序效应的结合。在 Bogoliubov-de Gennes 方程的框架内，对于纯净和无序系统，配对势的空间分布都是自洽地确定的。对于零无序情况，计算了序参量对化学势的依赖关系，发现了具有两个峰值的类能隙结构。讨论了平均配对势与 ribbon 宽度的关系。此外，还研究了无序对相关行为的影响。
