同时测量了一些Y-Ba-Cu-O 超导样品的交流磁化率、正常态电阻和临界电流密度。计算了交流磁化率的虚部极大值与实部之比。结果表明,x_(max)~″/x′和ρ_n 小的样品,临界电流密度大。
The a.c.susceptibility(x′),nourmal state resistivity(ρ_n)and critical currentdensity(J_c)of super conductive Y-Ba-Cu oixde were measured.The raito of imaginarypart maximum(X″_(max))to real part(x′)of a.c.susceptibility was calculated.The results showthat
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