  The radiative heat transfer between gold nanoparticle layers is presented
using the coupled dipole method. Gold nanoparticles are modelled as effective
electric and magnetic dipoles interacting via electromagnetic fluctuations. The
effect of higher-order multipoles is implemented in the expression of electric
polarizability to calculate the interactions at short distances. Our findings
show that the near-field radiation reduces as the radius of the nanoparticles
is increased. Also, the magnetic dipole contribution to the heat exchange
becomes more important for larger particles. When one layer is displayed in
parallel with respect to the other layer, the near-field heat transfer exhibits
oscillatory-like features due to the influence of the individual
nanostructures. Further details about the effect of the nanoparticles size are
also discussed.
