The infrared spectra of ABC-stacking tri- and tetra-layer graphenes studied by first-principles calculations

Details The infrared spectra of ABC-stacking tri- and tetra-layer graphenes studied by first-principles calculations The infrared spectra of ABC-stacking tri- and tetra-layer graphenes studied by first-principles calculations

2010-10-24

arxiv.org/abs/1010.4955v1

Phys. Rev. B 84, 245433 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 5 figures

Scientific paper

The infrared absorption spectra of ABC-stacking tri- and tetra-layer graphenes are studied using the density functional theory. It is found that they exhibit very different characteristic peaks compared with those of AB-stacking ones, caused by the different stacking sequence and interlayer coupling. The anisotropy of the spectra with respect to the direction of the light electric field is significant. The spectra are more sensitive to the stacking number when the electric field is perpendicular to the graphene plane due to the interlayer polarization. The high sensitivities make it possible to identify the stacking sequence and stacking number of samples by comparing theory and experiment.

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