Skyrmions-based logic gates in one single nanotrack completely reconstructed via chirality barrier  

作　　者：Dongxing Yu Hongxin Yang Mairbek Chshiev Albert Fert 

机构地区：[1]Quantum Functional Materials Laboratory,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Sciences,Ningho 315201,China [2]UniversitéGrenoble Alpes,CEA,CNRS,Spintec,Grenoble 38000,France [3]UniversitéParis-Saclay,UnitéMixte de Physique CNRS-Thales,Palaiseau 91767,France [4]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China [5]Institut Universitaire de France(IUF),Paris 75231,France

出　　处：《National Science Review》2022年第12期190-197,共8页国家科学评论（英文版）

基　　金：supported by the Pioneer and Leading Goose'R&DProgram of Zhejiang Province(2022C01053);National Natural Science Foundation of China(11874059 and 12174405);European Union's Horizon 2020 Research and Innovation Programme under grant agreement 881603(Graphene Flagship),Key Research Program of Frontier Sciences,Chinese Academy of Sciences(ZDBS-LY-7021);Major Special Projects of the Science and Technology Innovation'from Ningbo Science and Technology Bureau(2021000215);Zhejiang Provincial Natural Science Foundation(LR19A040002);Beijing National Laboratory for Condensed Matter Physics(2021000123);China Postdoctoral Science Foundation(2021M703314).

摘　　要：Logic gates based on magnetic elements are promising candidates for logic-in-memory applications with non-volatile data retention,near-zero leakage and scalability.In such spin-based logic devices,however,the multi-strip structure and fewer functions are obstacles to improving integration and reducing energy consumption.Here we propose a skyrmions-based single-nano track logic family including AND,OR,NOT,NAND,NOR,XOR and XNOR that can be implemented and reconstructed by building and switching the Dzyaloshinskii-Moriya interaction(DMI)chirality barrier on a racetrack memory.Besides the pinning effect of the 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 the DMI,which are necessary for the design of an engineer programmable logic nanotrack,transistor and complementary racetrack memory.

关 键 词：SKYRMION single-nanotrack logic gates SPINTRONICS DMI chirality barrier reconstruction of single device 

分 类 号：TP333[自动化与计算机技术—计算机系统结构]