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纳磁逻辑电路具有低功耗、非易失和可常温下制备等优点,实现低功耗片上时钟是其集成化的必备条件.本文提出了一种基于交换作用的纳磁逻辑电路片上时钟结构,用载流铜导线产生的奥斯特场将铁磁体薄膜覆层进行磁化,然后依靠铁磁体层与纳磁体界面存在的交换作用场使后者磁化方向发生翻转.与轭式铁磁体时钟用外磁场控制纳磁体磁化方向相比,该方案在功耗方面降低了5/6,时钟边界杂散场强度降低了2/3,达到降低功耗、减轻串扰的目的.此外,采用微磁仿真进一步验证了该时钟结构上的纳磁体逻辑阵列可以实现逻辑功能.
The nanomagnet logic circuit has the advantages of low power consumption, nonvolatile and can be prepared at room temperature, and low power consumption on-chip clock is the prerequisite for its integration.This paper presents a switching logic based nanocrystalline logic chip on-chip clock Structure, the current generated by the current-carrying copper wire Austrian field will ferromagnetic thin film coating magnetization, and then rely on the ferromagnetic layer and the nano-magnet interface existing exchange field so that the latter direction of magnetization reversal and yoke ferromagnetic clock Compared with the control of the magnetization direction of the nanomagnet with an external magnetic field, this scheme reduces the power consumption by 5/6 and reduces the stray field strength by 2/3 to achieve the purpose of reducing power consumption and reducing crosstalk. In addition, It is further verified that the logic structure of the nano-magnet logic array on the clock structure can realize the logic function.