Pesearchers at the U.S. Department of Energy's Argonne National Laboratory have learned that swirling spin structures called magnetic vortices, when trapped within lithographically patterned ferromagnetic structures, behave in novel ways. In a 1nickel-iron alloy for example, when two vortices swirl in opposite directions the magnetic polarity of the central core of the voitices controls the time-evolution of the magnetic proerties, not the swirling direction. The material being studied is about one micron in size, and the area of the vortex core is about 10 nanometers.
展开▼
机译：美国能源部阿贡国家实验室（Argonne National Laboratory）的研究人员已经了解到，被称为磁涡旋的旋转自旋结构被捕获在光刻图案化的铁磁结构中时，会以新颖的方式发挥作用。例如，在1镍铁合金中，当两个涡旋沿相反的方向旋转时，语音中心的磁极性控制着磁性的时间演化，而不是旋转方向。所研究的材料的尺寸约为1微米，涡流核的面积约为10纳米。
展开▼
