“无色散零模”的色散--对L. Brey和H.A.用Dirac方程研究石墨烯纳米带的Fertig纸电子态
Dispersion of "Dispersionless Zero Mode": Comments on L. Brey and H.A. Fertig paper Electronic States of Graphene Nanoribbons Studied With The Dirac Equation
摘要:
作为早期提出的石墨烯大分子模型的一个特殊应用,我们找到了石墨烯锯齿形带边缘态带色散关系的精确解析表达式。该带通常被称为“无色散带”或“零模”。所得结果与文献中给出的边缘态的描述形成对比,表明前面给出的解释仅对电子/空穴波矢值的一个非常窄的区域有效,而对其余区域则不正确。
英文摘要:
As a particular application of the earlier proposed model of graphene as a macromolecule, we found the exact analytical expression of dispersion relation for the band of edge states in graphene zigzag ribbons. This band is often referred to as "dispersionless band" or "zero mode". The obtained result contrasts description of edge states given in the referenced paper, showing that the earlier given explanation is valid only for a very narrow region of values of the electron/hole wave vector, but for the rest, it is not correct.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。