论文标题
一个基于Skyrmions的逻辑门在一个单个纳米曲折中完全通过手性障碍重建
Skyrmions-based logic gates in one single nanotrack completely reconstructed via chirality barrier
论文作者
论文摘要
基于磁性元素的逻辑门是具有非易失性数据保留，接近零泄漏和可扩展性的内存逻辑应用程序的有希望的候选。但是，在这种基于自旋的逻辑设备中，多条纹结构和更少的功能是改善整合和减少能耗的障碍。在这里，我们提出了一个基于Skyrmions的单纳米式逻辑系列，包括和或不包括NAND，NOR，XOR和XNOR，可以通过在赛马场记忆中构建和切换Dzyaloshinskii-Moriya互动（DMI）壁垒来实现和重建。除了DMI手性障碍对天际的固定效果外，还通过DMI的局部逆转来实现和证明两个具有相反手性的天际的歼灭，融合和分流，这对于工程师可编程的逻辑Nanotrack，跨性别纳米型，跨性别和互补的Racetrack Mebory是必不可少的。
Logic gates based on magnetic elements are promising candidates for the logic-in-memory applications with nonvolatile data retention, near-zero leakage and scalability. In such spin-based logic device, however, the multi-strip structure and fewer functions are obstacles to improving integration and reducing energy consumption. Here we propose a skyrmions-based single-nanotrack logic family including AND, OR, NOT, NAND, NOR, XOR, and XNOR which can be implemented and reconstructed by building and switching Dzyaloshinskii-Moriya interaction (DMI) chirality barrier on a racetrack memory. Besides the pinning effect of DMI chirality barrier on skyrmions, the annihilation, fusion and shunting of two skyrmions with opposite chirality are also achieved and demonstrated via local reversal of DMI, which are necessary for the design of engineer programmable logic nanotrack, transistor and complementary racetrack memory.
