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We investigate nonlinear conduction in aromatic polyurea thin films and its influence on the dielectric applications over a broad temperature range. The experimental data indicate that several high field conduction mechanisms coexist in the polymer films and one conduction mechanism may dominate over the others depending on different temperatures. The results also reveal that owing to the non-linear...
Ferromagnetic Co0.5Cu0.5Fe2O4 and ferroelectric Ba0.8Sr0.2TiO3 composite ceramics, xCo0.5Cu0.5Fe2O4 + (1-x)Ba0.8Sr0.2TiO3 for x = 0.15, 0.3 and 0.45, were prepared by a conventional solid-state reaction method. The crystalline phases of the sintered samples were studied by the X-ray diffraction technique. Scanning electron microscopy (SEM) micrographs were taken to understand the microstructure of...
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