超导体磁场穿透深度测量中的数据分析问题

Data analysis in magnetic penetration depth measurements of superconductors

讨论了目前在超导体磁场穿透深度λ测量中常用的几种数据分析方法 .着重指出对于那些只能测量λ随温度的变化值Δλ(T) ,而无法测量其绝对值的实验而言 ,一种合适的数据分析方法对于我们从实验中得出正确的结论尤其重要 .而微分归一法将有效地克服目前此类实验中常用数据处理方法的不足 ,从而实现理论与实验间的无参量比较 .

Several frequently-used ways of data analysis in magnetic penetration depth lambda measurements of superconductors are discussed. For experiments where only relative values of Deltalambda = lambda (T) - lambda(0) can be measured, such as microwave surface impedance measurements, etc, care should be taken in fitting the theoretical model to the experimental data to obtain the absolute values of lambda (T). We propose a workable method of data analysis in such a situation.