Casimir Force Acting on a Multilayer Graphene Sheet with Strong Diamagnetism

Abstract

We calculate the Casimir force acting on randomly stacked graphene layers and investigate the impact of diamagnetism on the Casimir force. The randomly stacked graphene layers are predicted to have a much smaller permeability than regularly stacked graphene layers such as graphite. We show that the Casimir force between randomly stacked graphene layers and a conducting plate is enhanced as the permeability of the randomly stacked graphene layers decreases from 1 to 0, especially for large separations. Conversely, the magnitude of the Casimir force between the randomly stacked graphene layers and a magnetic-dielectric plate such as yttrium-iron-garnet decreases as the permeability of the randomly stacked graphene layers decreases, and the force can be repulsive if the permittivity of the magnetic-dielectric plate contains a permeability much smaller than its permeability.

Modeling carbon dioxide and methane adsorption on illite and calcite: enhancing the simplified local density model through crystal structure modifications

“…Parameters e fs and s fs are obtained according to the standard Lorentz-Berthelot combining rules, with the Lennard-Jones parameter of C, O, Al, Si, K, Ca, CO 2 and CH 4 , which is listed in Table 1. 18,[24][25][26][27] Parameter s 0 ss represents the diameter of the outermost atom, which is 2.85 Å for illite and 3.30 Å for calcite. Parameter h is the distance from corresponding inner plane to the outer surface of the mineral, whose value is obtained according to the mineral crystal structure.…”