Light absorption and pseudospin density generation in graphene nanoribbons

被引：2
|
作者：
Inglot, M. [1 ]
Dugaev, V. K. [1 ]
Berakdar, J. [2 ]
Barnas, J. [3 ]
机构：
[1] Rzeszow Univ Technol, Dept Phys & Med Engn, Al Powstancow Warszawy 6, PL-35959 Rzeszow, Poland
[2] Martin Luther Univ Halle Wittenberg, Inst Phys, D-06099 Halle, Germany
[3] Adam Mickiewicz Univ, Fac Phys, Ulica Uniwersytetu Poznanskiego 2, PL-61614 Poznan, Poland
来源：
PHYSICAL REVIEW B | 2019年 / 100卷 / 16期
关键词：
32;
D O I：
10.1103/PhysRevB.100.165406
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Light absorption in graphene nanoribbons is studied analytically and numerically. Due to size quantization, the electronic states in the nanoribbon form a set of one-dimensional subbands modifying remarkably the absorption coefficient. The electronic subbands are calculated using the Berry-Mondragon boundary conditions at the nanoribbon edges, which are applicable for nanoribbons of the armchair type. Numerical results on pseudospin (sublattice) density generation by light absorption are presented and discussed.
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页数：6
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