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Laser-induced effects on the electronic features of graphene nanoribbons
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10.1063/1.4772496
/content/aip/journal/apl/101/25/10.1063/1.4772496
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/25/10.1063/1.4772496
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Figures

Image of FIG. 1.
FIG. 1.

(a) Scheme of the considered setup: A graphene nanoribbon illuminated by a mid-infrared laser within a finite region of length L. The unit cell for the case of an armchair ribbon is marked with a rectangle (dashed line) and contains 4 N atoms in the notation used in the text. (b) Floquet quasi-energy dispersion for a small ribbon (N = 2). For the sake of better visualization, we show the quasi-energy spectrum without radiation (this allows to better distinguish the crossings between levels) and choose arbitrary frequency and intensity values. More realistic results are shown in Figs. 2 and 3. The scheme on the right shows the electronic states for two of such transitions.

Image of FIG. 2.
FIG. 2.

Average density of states for armchair graphene nanoribbons with N = 130 ((a) and (b)) and N = 129 ((c) and (d)) for two values of the laser power P: (solid black line with orange shaded area) and (dotted red line). Panels a and c ((b) and (d)) are for polarization along the x direction (y direction). The energy corresponding to is marked with an arrow for reference in the top of the panel. The DOS in absence of radiation is also shown for comparison (dashed lines, grey shaded area).

Image of FIG. 3.
FIG. 3.

DC conductance for armchair graphene nanoribbons with N = 130 ((a) and (b)) and N = 129 ((c) and (d)). Panels a and c ((b) and (d) are for polarization along the x direction (y direction).

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/content/aip/journal/apl/101/25/10.1063/1.4772496
2012-12-18
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Laser-induced effects on the electronic features of graphene nanoribbons
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/25/10.1063/1.4772496
10.1063/1.4772496
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