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Extend the omnidirectional electronic gap of Thue-Morse aperiodic gapped graphene superlattices
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10.1063/1.4772209
/content/aip/journal/apl/101/25/10.1063/1.4772209
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/25/10.1063/1.4772209
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of the square barriers in (b) T-M sequence () potentials along x-direction. Dark regions denote the electrodes applying the T-M sequence potentials on the graphene sheet and denotes the incident angle of carriers passing through the graphene superlattice.

Image of FIG. 2.
FIG. 2.

Band structures in terms of energy and incident angle for the T-M gapped GSLs (). The width sizes of A and B are , and the values of voltage loaded on them are and . The other parameter are .

Image of FIG. 3.
FIG. 3.

The gap width of T-M gapped GSL () in terms of energy and width ratio of potentials B and A at normal incidence. The yellow area is the energy range of OEG. The energy range for two different width ratios are shown in the figure, for and 1.35.

Image of FIG. 4.
FIG. 4.

Calculated transmission by a transfer matrix method. (a) Represents the transmission of GSL1 () with , (b) represents the transmission of GSL2 () with , and (c) is the transmission of heterostrucure GSL1/GSL2. The other parameters are , and in all the case.

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/content/aip/journal/apl/101/25/10.1063/1.4772209
2012-12-17
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Extend the omnidirectional electronic gap of Thue-Morse aperiodic gapped graphene superlattices
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/25/10.1063/1.4772209
10.1063/1.4772209
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