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The properties of ferroelectric ceramics based on barium strontium titanate and doped by admixtures with low permittivity and dielectric loss tangent are studied experimentally. These ceramics are viewed as a promising material for microwave devices applied in the acceleration technology. Ceramic samples the I-V characteristics of which contain long horizontal segments are found to have good insulating properties. Various conductivity mechanisms in these ceramics are discussed, and their effect on the amount and character of dielectric hysteresis in these samples is considered.
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Дедык et al. (2006) studied this question.
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