2012/04/19 by D. Drosdoff, A. D. Phan, L. M. Woods +2
Materials Science · Physics and Astronomy · #Band gap #Casimir effect #Chemical and Physical Properties of Materials #Dispersion (optics) #Dispersion relation #Graphene #Quantum Electrodynamics and Casimir Effect #Quantum and Classical Electrodynamics #Spatial dispersion #cond-mat.mes-hall
paper · pdf · doi:10.1140/epjb/e2012-30741-6
6 pages, 9 figures. Submitted to EPL
arxiv created 2012/04/19 · openalex publication_date 2012/11/01 · arxiv updated 2015/06/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
The Casimir force between graphene sheets is investigated with emphasis on the effect from spatial dispersion using a combination of factors, such as a nonzero chemical potential and an induced energy gap. We distinguish between two regimes for the interaction - T=0 K and T≠ 0 K. It is found that the quantum mechanical interaction (T=0 K) retains its distance dependence regardless of the inclusion of dispersion. The spatial dispersion from the finite temperature Casimir force is found to contribute for the most part from n=0 Matsubara term. These effects become important as graphene is tailored to become a poor conductor by inducing a band gap.