Transform between the permeability and permittivity in the close-packed Ni nanoparticles

Zhang, X. F.; Guan, P. F.; Dong, X. L.
July 2010
Applied Physics Letters;7/19/2010, Vol. 97 Issue 3, p033107
Academic Journal
We report an anomalously electromagnetic resonance in a simple Ni nanoparticle/paraffin system. The resonance, caused by the near-field interaction of nanoparticles, appears at ∼16 GHz as decreasing the interparticle distance down to ∼11 nm. It is associated with an unusual energy transfer from the permeability to permittivity, resulting in the enhanced dielectric and weakened magnetic attenuations. These experimental results can be well modeled by a numerical simulation, evidencing the enhanced electrical filed distribution as decreasing the interaction distance. This study enables us to first realize the permeability-to-permittivity transform of electromagnetic wave in nanocomposites.


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