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一、前言驻极体是一大类半永久极化的电介质。1890年英国物理学家O.Heaviside[1]首先提出了驻极体存在的可能性。自此三十年后日本物理学家江口元太郎[2]在研究油类及蜡类电传导性时,第一次成功制得驻极体。驻极体是一种固体电介质,它可以一面带正电,相反一面带负电,做为磁体的静电类似物而存在,不同点是驻极体在一定条件下可做成单极的驻极体,而至今未发现单极磁体。实验证明驻极体并不是什么反常现象,而是固体电介质的一种普遍现象,只不过在程度
I. Introduction Elephant body is a kind of semi-permanent polarized dielectric. 1890 British physicist O.Heaviside [1] first proposed the possibility of electret existence. Thirty years later, the Japanese physicist Eguchi Yuntaro [2] made the first successful electret in studying the electrical conductivity of oils and waxes. Electret is a solid dielectric that can be positively charged on one side and negatively charged on the other side as an electrostatic analogue of a magnet, with the difference that the electret can be made as a monopolar electret under certain conditions , But so far no unipolar magnet was found. Experiments show that the electret is not an anomalous phenomenon, but a common phenomenon of solid dielectrics, but to a certain extent