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Paper   IPM / Physic / 11839
School of Physics
  Title:   Many-Body Effects in Van Der Waals-Casimir Interaction between Graphene Layers
1.  J. Sarabadani
2.  A. Naji
3.  R. Asgari
4.  R. Podgornik
  Status:   Published
  Journal: Phys. Rev. B
  Vol.:  84
  Year:  2011
  Pages:   155407
  Supported by:  IPM
Van der Waals-Casimir dispersion interactions between two apposed graphene layers, a graphene layer and a substrate, and in a multilamellar graphene system are analyzed within the framework of the Lifshitz theory. This formulation hinges on a known form of the dielectric response function of an undoped or doped graphene sheet, assumed to be of a random phase approximation form. In the geometry of two apposed layers the separation dependence of the van der Waals interaction for both types of graphene sheets is determined and compared with some well known limiting cases. In a multilamellar array the many-body effects are quantified and shown to augment the magnitude of the van der Waals interactions.

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