超导样品的 SQUID 磁力计测量：RuSr2GdCu2O8 的案例
超导电性
2007-05-23 v2
摘要
超导 SQUID 磁力计磁路中的场不均匀性会在超导样品的直流磁化测量中造成严重的伪影。我们聚焦于从测量的 SQUID 输出信号中计算样品磁矩的程序。已报道 RuSr2GdCu2O8 这种弱铁磁超导体对 SQUID 超导磁路的不均匀性敏感，这会导致其测量磁化值产生伪影。事实上，我们表明，由于该化合物磁滞宽度极小，磁场在扫描长度内的变化小于 100 微特斯拉即可在测量的磁矩中产生伪信号。
关键词
引用
@article{arxiv.cond-mat/0211410,
title = {SQUID magnetometry of superconducting samples: The case of RuSr2GdCu2O8},
author = {Thomas P. Papageorgiou and Ludwig Bauernfeind and Hans F. Braun},
journal= {arXiv preprint arXiv:cond-mat/0211410},
year = {2007}
}
备注
15 pages, 7 figures, submitted to the Journal of Low Temperature Physics Reference correction compared to the first version. On page 10 of the first version the phrase ''We have used equations (16) and (17) from reference [10] ...'' has been corrected to ''We have used equations (16) and (17) from reference [11] ...''