Fa. Pinheiro et al., New effects in light scattering in disordered media and coherent backscattering cone: Systems of magnetic particles, PHYS REV L, 84(7), 2000, pp. 1435-1438
Single and multiple scattering of light by magnetic particles and their imp
lications to the coherent backscattering effect are reported. Single;scatte
ring of light by small magnetic particles presents unusual features such as
forward-backward asymmetry and resonance effects. In multiple scattering,
this leads to a global decrease in the localization parameter k l*, which e
xhibits an oscillatory dependence on the scatterer magnetic permeability. B
y considering magnetic scatterers following a Curie-Weiss susceptibility la
w, we suggest that kl* can be tuned by Varying the temperature.