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Asymmetric transport in asymmetric T-shaped graphene nanoribbons
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10.1063/1.2978246
/content/aip/journal/apl/93/9/10.1063/1.2978246
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/9/10.1063/1.2978246
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

An asymmetric TGNR where a semi-infinite ZGNR of width is connected to a horizontal AGNR of width . The top left (right) inset represents a unit cell of an AGNR (a ZGNR) with .

Image of FIG. 2.
FIG. 2.

(a) The conductance as a function of electron energy for the asymmetric TGNR with and . (b) The spatial-resolved LDOS of the asymmetric TGNR at .

Image of FIG. 3.
FIG. 3.

(a) A narrow asymmetric TGNR with and . (b) A T-shaped lattice chain that is equivalent to the asymmetric TGNR in (a), 1, 2, and 3, respectively, represent three leads. and represent the hopping energies in vertical lead 1 and horizontal leads 2 and 3, respectively. (c) The conductance as a function of electron energy for the T-shaped chain with different and . (d) The LDOS of the T-shaped chain with at .

Image of FIG. 4.
FIG. 4.

The conductance for the asymmetric TGNR as a function (a) of the widths with (at ) or (at ); (b) of the width with or 11 at ; (c) of the width with ( as is an even) or ( and is the residue of ) at . The solid and dashed lines represent conductances and , respectively.

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/content/aip/journal/apl/93/9/10.1063/1.2978246
2008-09-04
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Asymmetric transport in asymmetric T-shaped graphene nanoribbons
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/9/10.1063/1.2978246
10.1063/1.2978246
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