Optical transitions between Landau levels: AA -stacked bilayer graphene

Yen Hung Ho, Jhao Ying Wu, Rong Bin Chen, Yu Huang Chiu, Ming Fa Lin

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number101905
JournalApplied Physics Letters
Volume97
Issue number10
DOIs
Publication statusPublished - 2010 Sep 6

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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