The effect of electron surface scattering on fine metal particle   electromagnetic radiation absorption
  The magnetic dipole absorption cross section of a spherically shaped metal particle was calculated in terms of kinetic approach. The particle considered was placed in the field of a plane electromagnetic wave. The model of boundary conditions was investigated taking into account the dependence of the reflectivity coefficient both on the surface roughness parameter and on the electron incidence angle. The results obtained were compared with theoretical computation results for a model of combined diffusion-specular boundary conditions of Fuchs. 
I.A. Kuznetsova, M.E. Lebedev, A.A. Yushkanov
cond-mat.mes-hall