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Magneto-optical Selection Rules in Bilayer Bernal Graphene

Authors :
Ho, Yen-Hung
Chiu, Yu-Huang
Lin, De-Hone
Chang, Chen-Peng
Lin, Ming-Fa
Source :
ACSNano, 4, 1465 (2010)
Publication Year :
2010

Abstract

The low-frequency magneto-optical properties of bilayer Bernal graphene are studied by the tight-binding model with four most important interlayer interactions taken into account. Since the main features of the wave functions are well depicted, the Landau levels can be divided into two groups based on the characteristics of the wave functions. These Landau levels lead to four categories of absorption peaks in the optical absorption spectra. Such absorption peaks own complex optical selection rules and these rules can be reasonably explained by the characteristics of the wave functions. In addition, twin-peak structures, regular frequency-dependent absorption rates and complex field-dependent frequencies are also obtained in this work. The main features of the absorption peaks are very different from those in monolayer graphene and have their origin in the interlayer interactions.

Details

Database :
arXiv
Journal :
ACSNano, 4, 1465 (2010)
Publication Type :
Report
Accession number :
edsarx.1004.2800
Document Type :
Working Paper
Full Text :
https://doi.org/10.1021/nn9015339