Electric field dependence of excitation spectra in AB-stacked bilayer graphene

Ying Chih Chuang, Jhao Ying Wu, Ming Fa Lin

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The single-and many-particle Coulomb excitation spectra in Bernal bilayer graphene can be modulated by a uniform perpendicular electric field. The field-induced oscillatory parabolic bands possess saddle points and local extrema, which, respectively, lead to logarithmically divergent peaks and discontinuous steps in the bare response functions. Such special structures are associated with the plasmon peaks in the screened loss spectra. Their main characteristics, such as their existence, frequency, and strength, vary strongly with the field strength and transferred momentum. The predicted results could be further examined by inelastic light scattering spectroscopy and electron-energy-loss spectroscopy.

Original languageEnglish
Article number1368
JournalScientific reports
Volume3
DOIs
Publication statusPublished - 2013 Mar 25

All Science Journal Classification (ASJC) codes

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