Ultrafast demagnetization enhancement in CoFeB/MgO/CoFeB magnetic tunneling junction driven by spin tunneling current.
Ultrafast demagnetization enhancement in CoFeB/MgO/CoFeB magnetic tunneling junction driven by spin tunneling current.
复制标题
自旋隧道电流驱动 CoFeB/MgO/CoFeB 磁隧道结的超快退磁增强
DOI:
10.1038/srep02883
复制
发表时间:
2013-10-07
影响因子:
4.6
通讯作者:
Cheng, Zhao-Hua
中科院分区:
文献类型:
--
作者:
He, Wei;Zhu, Tao;Zhang, Xiang-Qun;Yang, Hai-Tao;Cheng, Zhao-Hua
The laser-induced ultrafast demagnetization of CoFeB/MgO/CoFeB magnetic tunneling junction is exploited by time-resolved magneto-optical Kerr effect (TRMOKE) for both the parallel state (P state) and the antiparallel state (AP state) of the magnetizations between two magnetic layers. It was observed that the demagnetization time is shorter and the magnitude of demagnetization is larger in the AP state than those in the P state. These behaviors are attributed to the ultrafast spin transfer between two CoFeB layers via the tunneling of hot electrons through the MgO barrier. Our observation indicates that ultrafast demagnetization can be engineered by the hot electrons tunneling current. It opens the door to manipulate the ultrafast spin current in magnetic tunneling junctions.
登录
查看更多内容
影响因子:
4
作者:
Ando, Y;Miyakoshi, T;Yuasa, S
通讯作者:
Yuasa, S
影响因子:
8.6
作者:
Turgut, Emrah;La-o-Vorakiat, Chan;Mathias, Stefan
通讯作者:
Mathias, Stefan
影响因子:
3.7
作者:
Battiato, M.;Carva, K.;Oppeneer, P. M.
通讯作者:
Oppeneer, P. M.
影响因子:
38.3
作者:
Kampfrath, T.;Battiato, M.;Muenzenberg, M.
通讯作者:
Muenzenberg, M.
影响因子:
44.1
作者:
Kirilyuk, Andrei;Kimel, Alexey V.;Rasing, Theo
通讯作者:
Rasing, Theo