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Graphene Plasmonics: Fully Atomistic Approach for Realistic Structures.
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-08-17 , DOI: 10.1021/acs.jpclett.0c02051
Tommaso Giovannini 1 , Luca Bonatti 2 , Marco Polini 3, 4 , Chiara Cappelli 2
Affiliation  

We demonstrate that the plasmonic properties of realistic graphene and graphene-based materials can effectively and accurately be modeled by a novel, fully atomistic, yet classical, approach, named ωFQ. Such a model is able to reproduce all plasmonic features of these materials and their dependence on shape, dimension, and fundamental physical parameters (Fermi energy, relaxation time, and two-dimensional electron density). Remarkably, ωFQ is able to accurately reproduce experimental data for realistic structures of hundreds of nanometers (∼370k atoms), which cannot be afforded by any ab initio method. Also, the atomistic nature of ωFQ permits the investigation of complex shapes, which can hardly be dealt with by exploiting widespread continuum approaches.

中文翻译:

石墨烯等离子:现实结构的完全原子方法。

我们证明,可以通过一种名为ωFQ的新颖,完全原子化而又经典的方法来有效,准确地模拟现实的石墨烯和基于石墨烯的材料的等离子特性。这样的模型能够再现这些材料的所有等离子体特征及其对形状,尺寸和基本物理参数(费米能量,弛豫时间和二维电子密度)的依赖性。值得注意的是,ωFQ能够准确地再现数百纳米(约370k原子)的真实结构的实验数据,这是任何从头算方法都无法提供的。同样,ωFQ的原子性质允许研究复杂的形状,这很难通过利用广泛的连续谱方法来解决。
更新日期:2020-09-18
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