Temperature Effects on the Plasmon Modes of Double-layer Graphene

Dinh Van Tuan; Nguyen Quoc Khanh

doi:10.15625/0868-3166/22/1/632

Temperature Effects on the Plasmon Modes of Double-layer Graphene

Dinh Van Tuan, Nguyen Quoc Khanh

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Authors

Dinh Van Tuan Department of Theoretical Physics, Ho Chi Minh City National University
Nguyen Quoc Khanh Department of Theoretical Physics, Ho Chi Minh City National University

DOI:

https://doi.org/10.15625/0868-3166/22/1/632

Abstract

We calculate the dynamical dielectric function of doped double-layer graphene (DLG), made of two parallel graphene monolayers with carrier densities

n_{1}, n_{2}

$n_1, n_2$ , respectively, and a separation interlayer of

$d$ at finite temperature. The results are used to find the dispersion of plasmon modes. We study the temperature effects on the DLG plasmon modes in the case of symmetric system

$(n_1=n_2)$ , asymmetric system

$(n_1\neq n_2)$ and no free carriers in the second layer

$(n_2=0)$ . We show that the effect of temperature on the plasmon dispersion is significant and can not be ignored in investigating graphene properties.

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Published

07-05-2012

How to Cite

[1]

D. V. Tuan and N. Q. Khanh, “Temperature Effects on the Plasmon Modes of Double-layer Graphene”, Comm. Phys., vol. 22, no. 1, pp. 45–51, May 2012.

IEEE

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Vol. 22 No. 1 (2012)

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Papers

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