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Quantum Bohm correction to polarization spectrum of graphene
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10.1063/1.4826220
/content/aip/journal/pop/20/10/10.1063/1.4826220
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/10/10.1063/1.4826220
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The dispersion curves for the polarization spectrum of graphene (a) with and without the quantum Bohm correction and (b) opening of the energy-gap in the spectrum due to the application of a uniform magnetic field perpendicular to the graphene plane. The increase in the thickness of curves reflects the increase in the varied parameter in Fig. 1(b) .

Image of FIG. 2.
FIG. 2.

The variation of the plasmon phase-speed, with (solid curve) and without (dashed curve) the Bohm correction, with respect to wavenumber showing a distinct minimum value in the absence of external magnetic field and (b) in presence of the magnetic field with different field parameters. The increase in the thickness of curves reflects the increase in the varied parameter in Fig. 2(b) .

Image of FIG. 3.
FIG. 3.

(a) The effect of the Bohm correction on the inverse of the transverse dielectric function of graphene and (b) the effect of magnetic field parameter on the dielectric function. The horizontal -values are normalized to the Fermi wavenumber, . The increase in the thickness of curves reflects the increase in the varied parameter in Fig. 3(b) .

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/content/aip/journal/pop/20/10/10.1063/1.4826220
2013-10-17
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Quantum Bohm correction to polarization spectrum of graphene
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/10/10.1063/1.4826220
10.1063/1.4826220
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