Proximity effect in a superconductor/exchange-spring-magnet hybrid system
Proximity effect in a superconductor/exchange-spring-magnet hybrid system
复制标题
超导体/交换弹簧磁体混合系统中的邻近效应
DOI：
10.1103/physrevb.81.214435
复制
发表时间：
2010
影响因子：
3.7
通讯作者：
C. You
中科院分区：
文献类型：
--
作者：
J. Gu;Jefery Kusnadi;C. You
研究了非共线磁位形超导/铁磁体S/F混合系统中的邻近效应。本文提出了一种新型的S/交换弹簧ES磁体结构，其中ES磁体用作F层，因为通过旋转外磁场以良好可控的方式使磁化结构从共线状态变为非共线状态。我们发现，电阻降低和超导转变温度的增加，作为非共线引入从共线状态。我们解释说，我们的实验观察是由于奇数三重态超导凝聚体的贡献，在非共线磁化配置中的ES磁铁幸存下来。
We investigate the proximity effect in a superconductor/ferromagnet S/F hybrid system with a noncollinear magnetic configuration. A new structure of an S/exchange-spring ES magnet is fabricated, where an ES magnet is employed as an F layer since the magnetization configuration is varied from a collinear state to a noncollinear state by a rotating external magnetic field in a well controllable way. We found that the resistance decreases and the superconducting transition temperature increases, as noncollinearity is introduced starting from a collinear state. We interpret that our experimental observation is due to the contribution of the oddtriplet superconducting condensate that survived in a noncollinear magnetization configuration in the ES magnet.