Energy Losses by the Interaction of Charged Particles with a Graphene Sheet
Lijun Wang
School of Microelectronics and Control Engineering, Changzhou University, Changzhou 213164, China.
Dong Sun
School of Microelectronics and Control Engineering, Changzhou University, Changzhou 213164, China.
Xiuqin Hua
School of Microelectronics and Control Engineering, Changzhou University, Changzhou 213164, China.
Daqing Liu *
School of Microelectronics and Control Engineering, Changzhou University, Changzhou 213164, China.
*Author to whom correspondence should be addressed.
Abstract
Using the fluid dynamics model, we studied the formation of graphene surface plasma when the charge is tilted to the graphene sheet for motion. We calculated the electron energy loss spectrum of electrons at different angles and proved that the resonance in the spectrum is related to the frequency of graphene surface plasma, as the electron velocity decreases, the dispersion shifts to higher energies. An increase in the tilt angle will also shift the dispersion energy in a higher range.
Keywords: Hydrodynamic, graphene, plasmonic, energy loss