Casimir pressure in peptide films on metallic substrates: Change of sign via graphene coating

@inproceedings{Klimchitskaya2021CasimirPI,
  title={Casimir pressure in peptide films on metallic substrates: Change of sign via graphene coating},
  author={Galina L. Klimchitskaya and Vladimir M. Mostepanenko and E. N. Velichko},
  year={2021}
}
We find that the Casimir pressure in peptide films deposited on metallic substrates is always repulsive which makes these films less stable. It is shown that by adding a graphene sheet on top of peptide film one can change the sign of the Casimir pressure by making it attractive. For this purpose, the formalism of the Lifshitz theory is extended to the case when the film and substrate materials are described by the frequency-dependent dielectric permittivities, whereas the response of graphene… 

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