Title :
Sticks and platelets in 3D random mixtures [dielectric/magnetic systems]
Author_Institution :
Commissatiat a l´´Energie Atomique, Le Barp, France
Abstract :
Broadband adapted screens have been obtained from random mixtures of anisotropic materials. The optimized screens and mixture parameters were calculated by using a genetic algorithm. Above to a few GHz, the optimal arrangement is demonstrated to be a three layers stacking of random mixtures made of conducting sticks. For each mixture the relevant parameters are the depolarizing factors of the sticks, that is their aspect ratio. Around 1 GHz, adapted screens are eventually obtained from insulated ferromagnetic platelets
Keywords :
ferromagnetic materials; magnetic particles; magnetic thin films; permittivity; 3D random mixtures; anisotropic materials; aspect ratio; broadband adapted screens; conducting sticks; depolarizing factors; ferromagnetic thin films; genetic algorithm; insulated ferromagnetic platelets; magnetic screens; mixture parameters; multilayer electric screens; optimized screens; platelets; sticks; three layer stacking; Anisotropic magnetoresistance; Conductivity; Ellipsoids; Equations; Frequency; Permittivity; Resonance; Shape; Statistical distributions; Tensile stress;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1995. ICSD'95., Proceedings of the 1995 IEEE 5th International Conference on
Conference_Location :
Leicester
Print_ISBN :
0-7803-2040-9
DOI :
10.1109/ICSD.1995.523080
