Magnetic devices Ultrafast precessional magnetization reversal process of Abstract: Based on the basic theory of micro-magnetic and magnetic dynamic theory of rectangular nano-thin film system under the action of the ultra-fast pulsed field magnetization reversal process of moving into the system. Research by pulse amplitude and pulse duration on the rectangular field of nano-thin film systems and the inversion time inversion effect: in the same pulse duration and pulse direction, with the pulse amplitude varies from small to large, reverse time presents some variation, that is, the initial magnetic structure of three magnetic reversal time increases with the magnitude of increases. In the same pulse amplitude and pulse direction, with the pulse duration changes from small to large, reverse time with a certain variation: For C-shaped and S-shaped magnet initial magnetic structure, inversion time first decreases increased after the last change; for the initial magnetic structure of F-shaped magnet, inversion time first decreases and then increases. These conclusions for the nano-magnetic information devices and the development of spin electronic devices to provide a more systematic theoretical guidance. Key words: micro-magnetism; pulsed field; magnetization reversal process
屠夫糖糖
