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Two Stream Instability In Graphene, Mitchell Duffer
Two Stream Instability In Graphene, Mitchell Duffer
Williams Honors College, Honors Research Projects
Mitchell Duffer
Major: Physics
Project Sponsor: Ben Yu-Kuang Hu
Number of Project Credits: 2
Two Stream Instability in Graphene
We investigate the unstable modes of the two-stream instability in graphene to determine if they can occur. This instability occurs when a population of electrons streams past another inside graphene. We obtain the unstable modes by numerically determining the zeros of the non-equilibrium graphene dielectric function using MATLAB. The dielectric function used in this study, in contrast to previous studies, includes the effects of the particle-hole excitation continuum (PHEC) that normally quells the evolution of unstable plasmons. MATLAB’s built in zero …