Anomalous spin-triplet current in Ho/Co/Ho-based Josephson junctions
Anomalous spin-triplet current in Ho/Co/Ho-based Josephson junctions
复制标题
Ho/Co/Ho基约瑟夫森结中的反常自旋三重态电流
DOI：
10.1209/0295-5075/105/27007
复制
发表时间：
2014
期刊：
影响因子：
1.8
通讯作者：
Zhou Shi-Ping
中科院分区：
文献类型：
--
作者：
Wen Lin;Jin Li-Jing;Chen Yu;Zha Guo-Qiao;Zhou Shi-Ping
The supercurrent through a holmium/cobalt/holmium-based Josephson junction is investigated by using the extended the Blonder-Tinkham-Klapwijk (BTK) approach. It is found that the spiral magnetism of the Ho layer can induce both spin-split and spin-flip scatterings, which control the conversion between the spin-singlet and equal spin-triplet pairing correlations, generating a tunable long-range spin-triplet pair ordering. Spin-triplet current sharp peaks variations with the Ho layer thickness as well as a slow decay of the current amplitude with the Co layer thickness are revealed. The theoretical results are in good agreement with the relevant experimental observations (Robinson J. W. A. et al., Science, 329 (2010) 59).
