Optical transitions between Landau levels: AA-stacked bilayer graphene

被引：46

作者：

Ho, Yen-Hung ^{[1
,2
]}

Wu, Jhao-Ying ^{[1
]}

Chen, Rang-Bin ^{[3
]}

Chiu, Yu-Huang ^{[1
]}

Lin, Ming-Fa ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[2] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 804, Taiwan

[3] Natl Kaohsiung Marine Univ, Ctr Gen Educ, Kaohsiung 830, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 10期

关键词：

GRAPHITE;

D O I：

10.1063/1.3488806

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magneto-optical absorption spectra of AA-stacked bilayer graphene (AABG) exhibit two kinds of absorption peaks resulting from two groups of Landau levels (LLs). Only intragroup excitations that follow a single selection rule take place. The excitation channels are altered as the field strength approaches a critical strength. These optical properties can be comprehended by the characteristics of the LL wave functions. A comparison of AABG and AB-stacked bilayer graphene (BBG) demonstrates that the optical properties are dominated by the stacking symmetry. The presented results could offer a way to distinguish AABG from BBG and monolayer graphene. (C) 2010 American Institute of Physics. [doi:10.1063/1.3488806]

引用

页数：3

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