Magnetic domain-wall motion twisted by nanoscale probe-induced spin transfer
Magnetic domain-wall motion twisted by nanoscale probe-induced spin transfer
复制标题
纳米级探针诱导的自旋转移扭曲磁畴壁运动
DOI:
10.1103/physrevb.90.224407
复制
发表时间:
2014-07
影响因子:
3.7
通讯作者:
Zhang J. X.
中科院分区:
文献类型:
--
作者:
Wang J.;Xie L. S.;Wang C. S.;Zhang H. Z.;Shu L.;Bai J.;Chai Y. S.;Zhao X.;Nie J. C.;Cao C. B.;Gu C. Z.;Xiong C. M.;Sun Y.;Shi J.;Salahuddin S.;Xia K.;Nan C. W.;Zhang J. X.
A method for deterministic control of magnetism using an electrical stimulus is highly desired for the new generation of magnetoelectronic devices. Much effort has been focused on magnetic domain-wall (DW) motion manipulated by a successive injection of spin-polarized current into a magnetic nanostructure. However, an integrant high-threshold current density of 10(11) similar to 10(12) A/m(2) inhibits the integration with low-energy-cost technology. Here, we report an approach to manipulate a single magnetic domain wall with a perpendicular anisotropy in a manganite/dielectric/metal capacitor using a probe-induced spin displacement. A spin-transfer torque (STT) occurs in the strongly correlated manganite film during the spin injection into the capacitor from the nanoscale magnetized tip with an ultralow voltage of 0.1 V, where a lower bound of the estimated threshold spin-polarized current density is similar to 10(8) A/m(2) at the tip/manganite interface. The dynamic of DW motions are analyzed using the Landau-Lifshitz-Gilbert method. This probe-voltage-controlled DW motion, at an ambient condition, demonstrates a critical framework for the fundamental understanding of the manipulation of the nanomagnet systems with low-energy consumption.
登录
查看更多内容
影响因子:
16.6
作者:
Schellekens, A. J.;van den Brink, A.;Koopmans, B.
通讯作者:
Koopmans, B.
影响因子:
3.7
作者:
Jiang Xiao;A. Zangwill;M. Stiles
通讯作者:
Jiang Xiao;A. Zangwill;M. Stiles
影响因子:
8.6
作者:
Feigenson, Michael;Reiner, James W.;Klein, Lior
通讯作者:
Klein, Lior
影响因子:
8.6
作者:
Ke, X.;Belenky, L. J.;Rzchowski, M. S.
通讯作者:
Rzchowski, M. S.
影响因子:
8.6
作者:
Yamaguchi, A;Ono, T;Shinjo, T
通讯作者:
Shinjo, T