TY - JOUR
T1 - Layer-enriched optical spectra of AB-stacked multilayer graphene
AU - Chiu, Chih Wei
AU - Ho, Yen Hung
AU - Shyu, Feng Lin
AU - Lin, Ming Fa
N1 - Publisher Copyright:
© 2014 The Japan Society of Applied Physics
PY - 2014/11/1
Y1 - 2014/11/1
N2 - The band structures and optical properties of AB-stacked multilayer graphene are calculated using the tight-binding model and gradient approximation. For nL-layer AB-stacked graphene, there are n2L excitation channels at both the low and middle frequencies. However, in the excitation spectra, nL (nL - 1) peaks exist at the low frequency for even-layer (odd-layer) systems, and one-shoulder and nL peaks at the middle frequency. With increasing nL, the differences in the spectra between the odd and even layers are reduced. When nL increases to 30 (50), the spectra of 2D and 3D systems are almost identical at the middle (low) frequency.
AB - The band structures and optical properties of AB-stacked multilayer graphene are calculated using the tight-binding model and gradient approximation. For nL-layer AB-stacked graphene, there are n2L excitation channels at both the low and middle frequencies. However, in the excitation spectra, nL (nL - 1) peaks exist at the low frequency for even-layer (odd-layer) systems, and one-shoulder and nL peaks at the middle frequency. With increasing nL, the differences in the spectra between the odd and even layers are reduced. When nL increases to 30 (50), the spectra of 2D and 3D systems are almost identical at the middle (low) frequency.
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U2 - 10.7567/APEX.7.115102
DO - 10.7567/APEX.7.115102
M3 - Article
AN - SCOPUS:84909992298
SN - 1882-0778
VL - 7
SP - 115102
JO - Applied Physics Express
JF - Applied Physics Express
IS - 11
ER -