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Surface polar phonon dominated electron transport in graphene
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10.1063/1.3525606
/content/aip/journal/apl/97/23/10.1063/1.3525606
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/23/10.1063/1.3525606
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Surface polar phonon scattering rate of graphene electron on SiC, , and for the electron density of at 300 K. Also plotted is the intrinsic graphene optical phonon scattering rate at 300 K (“intrinsic”) obtained from Ref. 13.

Image of FIG. 2.
FIG. 2.

Electron drift velocity in graphene on SiC, , and . The intrinsic case without substrate is also shown. The electron density is at 300 K.

Image of FIG. 3.
FIG. 3.

Electron distribution function with different substrate conditions: intrinsic (dashed-dotted), SiC (solid), (dashed), and (dotted) for the cross section at 20 kV/cm. The boxlike function corresponds to the Fermi–Dirac distribution displaced by the SPP energy (60 meV) in a simple, metal-like approximation (i.e., ) with . For comparison, the equilibrium Fermi–Dirac distribution at 300 K is also plotted.

Image of FIG. 4.
FIG. 4.

Electrical resistivity vs temperature with different substrate conditions: intrinsic (circle), SiC (square), (triangle), and (diamond) with . The slope of the straight lines is used to extract the acoustic deformation potential.

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/content/aip/journal/apl/97/23/10.1063/1.3525606
2010-12-09
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Surface polar phonon dominated electron transport in graphene
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/23/10.1063/1.3525606
10.1063/1.3525606
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