半绝缘系统中的低频色散

Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI:10.1109/CEIDP.1986.7726425

A. K. Jonscher

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摘要

在足够高的温度下，由于缓慢移动电荷数量的增加，所有绝缘体都趋于半绝缘。这种材料的介电特性表现出一种称为低频色散(LFD)的特征“特征”，与并联电容器的直流(dc)行为以及实际上代表电阻Ro和电容器C0的一系列组合的麦克斯韦-瓦格纳过程(MW)截然不同。

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Low-frequency dispersion in semi-insulating systems

At sufficiently high temperatures all insulators tend to become semi-insulating due to increasing numbers of slowly mobile charges. The dielectric properties of such materials show a characteristic "signature" called low-frequency dispersion (LFD) differing drastically from direct current (dc) conduct in parallel with a capacitor and also from the Maxwell-Wagner process (MW) which in effect represents a series combination of a resistor Ro and a capacitor C0.

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Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986

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