Asymptotics of the dispersion interaction: analytic benchmarks for van der Waals energy functionals.
作者： John F. Dobson , Angela White , Angel Rubio
DOI: 10.1103/PHYSREVLETT.96.073201
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摘要: We show that the usual sum of R-6 contributions from elements separated by distance R can give qualitatively wrong results for electromagnetically nonretarded van der Waals interaction between nonoverlapping bodies. This occurs anisotropic nanostructures have a zero electronic energy gap, such as metallic nanotubes or nanowires, and nanolayered systems including metals graphene planes. In all these cases our analytic microscopic calculations an falling off with power separation different conventional value. discuss implications functionals. The new nanotube might be directly observable at submicron separations.
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