Current induced switching of vortex polarity in magnetic nanodisks
Current induced switching of vortex polarity in magnetic nanodisks
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DOI：
10.1063/1.2775036
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发表时间：
2007-08-20
影响因子：
4
通讯作者：
Mertens, Franz G.
中科院分区：
文献类型：
--
作者：
Sheka, Denis D.;Gaididei, Yuri;Mertens, Franz G.
它示出的涡旋极性可以不可逆地切换注入自旋极化的直流电流，垂直于磁盘平面流动。密集的数值自旋晶格模拟表明，开关过程涉及到一个涡旋-反涡旋对的创建。这与没有偶极相互作用的磁体不同，其中自旋dc的作用类似于静态磁场。
It is shown that the vortex polarity can be irreversibly switched by injecting a spin-polarized direct electrical current, which flows perpendicular to the disk plane. Intensive numerical spin-lattice simulations demonstrate that the switching process involves a vortex-antivortex pair creation. This differs from magnets with no dipolar interaction, where the spin dc acts similar to a static magnetic field.