Nature of the low magnetization decay on stacks of second generation superconducting tapes under crossed and rotating magnetic field experiments.
Nature of the low magnetization decay on stacks of second generation superconducting tapes under crossed and rotating magnetic field experiments.
复制标题
在交叉和旋转磁场实验下，第二代超导胶带堆栈上低磁化衰变的性质。
DOI：
10.1038/s41598-018-19681-8
复制
发表时间：
2018-01-22
影响因子：
4.6
通讯作者：
Coombs TA
中科院分区：
文献类型：
--
作者：
Baghdadi M;Ruiz HS;Coombs TA
第二代高温超导带堆捕获磁场的极低衰减因子在苹果报道。理论物理。Lett. 104, 232602(2014)，与超导体和薄膜退磁的经典结果明显矛盾，其中样品在交叉磁场条件下经历严重和渐进的衰减。然而，在本文中，我们展示了超导体、薄膜和超导带堆的理论方法和实验测量是如何协调的，不仅在交叉场配置下，而且在旋转磁场条件下，通过显示商业带堆的行为作为一个电不连接层的系统，防止电流沿其外部轮廓轮廓的变形。这项研究扩展到考虑使用新的超导/铁磁超结构，其中软磁薄膜是层间的，报告在交叉场配置中磁化衰减进一步降低了约50%。值得注意的是，在对这些超结构施加相同次数的旋转或交叉磁场循环后，发现磁化衰减之间的差异可以忽略不计，这表明与传统的超导带堆相比，它们的性能非常优越。
The extremely low decay factor on the trapped magnetic field by stacks of second-generation high-temperature superconducting tapes reported in Appl. Phys. Lett. 104, 232602 (2014), is in apparent contradiction with the classical results for the demagnetization of superconducting bulks and thin films, where the samples undergo a severe and progressive decay under crossed magnetic field conditions. Nevertheless, in this paper, we demonstrate how the theoretical approaches and experimental measurements on superconducting bulks, thin films, and stacks of superconducting tapes can be reconciled, not only under the crossed field configuration but also under rotating magnetic field conditions, by showing that the stacks of commercial tapes behave as a system of electrically unconnected layers preventing the deformation of profiles of current along its external contour. This study extends up to the consideration of using novel superconducting/ferromagnetic metastructures, where soft ferromagnetic films are interlayered, reporting a further reduction on the magnetization decay of about 50% in the crossed field configuration. Remarkably, after applying the same number of cycles either of rotating or crossed magnetic field to these metastructures, the difference between the magnetization decay is found to be negligible, what demonstrates their highly superior performance when compared to conventional stacks of superconducting tapes.
登录
查看更多内容
影响因子：
1.8
作者：
Song, Honghai;Brownsey, Paul;Hazelton, Drew
通讯作者：
Hazelton, Drew
影响因子：
3.6
作者：
Bobyl, AV;Shantsev, DV;Gaevski, ME
通讯作者：
Gaevski, ME
影响因子：
3.6
作者：
Celebi, S.;Sirois, F.;Lacroix, C.
通讯作者：
Lacroix, C.
影响因子：
4
作者：
Geng, J.;Shen, B.;Coombs, T. A.
通讯作者：
Coombs, T. A.
影响因子：
3.6
作者：
Page, A. G.;Patel, A.;Glowacki, B. A.
通讯作者：
Glowacki, B. A.