Ab initio study of dielectric response of rippled graphene

作者：Sedelnikova O V^*; Bulusheva L G; Okotrub A V

来源：Journal of Chemical Physics, 2011, 134(24): 244707.

DOI：10.1063/1.3604818

• ab initio calculations
• bending
• dielectric function
• electron energy loss spectra
• graphene
• ground states
• surface plasmons
• transparency
• ultraviolet spectra

Ab initio calculations of dielectric function and electron energy loss (EEL) function of periodically rippled armchair-edged graphene were performed in the framework of the random-phase approximation. The bending of graphene was found to remove restrictions on the electron transitions being forbidden in the flat graphene for certain light polarization. As a result, new peaks appear in the optical absorption spectrum and EEL spectrum of rippled graphene. Energy position, intensity, and width of the peaks are sensitive

• 出版日期2011-6-28