纳米接触点的位置和大小对磁涡旋核反转的影响

Influence of nanocontact position and size on the magnetic vortex switching

利用微磁模拟的方法研究了纳米接触点的位置和大小对坡莫纳米盘中磁涡旋核极性反转的影响.着重研究了纳米接触点的位置和大小对磁涡旋核反转的临界电流密度和反转时间的影响.微磁模拟结果表明,纳米接触点的大小对磁涡旋核反转的临界电流密度产生很大影响,而纳米接触点的位置对磁涡旋核的反转时间影响很大.

The influence of nanocontact position and size on the magnetic vortex switching is studied by micromagnetic simulation. The effects of critical current density and switching time has been studied. The simulation results show that the nanocontact size plays a key role in the critical switching current density,and the position exerts great influences on the switching time.