交换积分对铁磁性的定量表示

TO USE EXCHANCE INTEGRAL FOR OUANTITATIVE INDICATION OF FERROMAGNETISM

论述了交换作用理论模型、波函数、位场、Ｈａｍｉｌｔｏｎ算符的选定、修正与调整及对６４号元素Ｇｄ的交换积分的计算，并给出其计算结果。计算结果与实验结果相符合，证明用交换积分作为铁磁性判据是正确的。提出了采用交换积分Ｊ作为铁磁性强弱定量表示的参数。并提出了在磁探伤中采用交换积分Ｊ作为选择磁化规范的参数的初步设想。

This paper presents selection, revision and adjustment of theory model,potential field,wave function and Hantilton operator of exchange interaction,and computation of exchange integralof elenient Gd number 64,and gives result of the computation。That the cumpputation result isagreenent with experiment result proves that it is currect to use exchange integral as criterion offerromagnetism,The paper advances to use excliange integral J as parameter of quantitativeindication of strength of ferrumagnetism.And authors advance a tentative idea to use exchangeintegral as parameter of selection of magnetication standard in magnetic testing.