Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2010-09-24
Physics
Condensed Matter
Disordered Systems and Neural Networks
This work was reported at Fourth International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (MetaMa
Scientific paper
We show that technique of Dyson equation in wave multiple scattering by spatially disordered discrete medium statistical theory leads directly to a dielectric permittivity tensor, which is characterized by spatial dispersion and obeys the generalized Lorentz-Lorenz formula. Introduced via this spatial dispersion an effective magnetic permeability demonstrates the diamagnetic property in limit of independent strongly reflected non-magnetic small spherical particles in accordance with earlier intuitive predictions. The revealed physical nature of the effective diamagnetic property consists in that electric and magnetic dipoles induced in a particle by wave scattering give different contribution into the transverse and longitudinal components of the effective dielectric permittivity. Besides as appeared the diamagnetism under study is enhanced by appearance of additional effective dielectric displacement current in the medium.
Barabanenkov Yu. M.
Barabanenkov Yu. N.
Nikitov Sergey A.
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