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arXiv 1101.2884cond-mat.mtrl-sci
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有限温度下双层石墨烯的等离激元模

Plasmon modes of double-layer graphene at finite temperature

Dinh Van Tuan, Nguyen Quoc Khanh

摘要:

我们计算了掺杂双层石墨烯(DLG)的动态介电函数,DLG由两个载流子密度分别为n1,n2,层间间距为d的平行石墨烯单层构成.结果被用来寻找等离子体激元模式的色散和损失函数的DLG几个层间分离和层密度。我们表明,在n2 =0的情况下,温度等离子体激元模式是显着不同的零温度。

英文摘要:

We calculate the dynamical dielectric function of doped double-layer graphene (DLG), made of two parallel graphene monolayers with carrier densities n 1, n2, respectively, and an interlayer separation of d at finite temperature. The results are used to find the dispersion of plasmon modes and loss functions of DLG for several interlayer separations and layer densities. We show that in the case of n 2=0, the temperature plasmon modes are dramatically different from the zero temperature ones.

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