Owing to rapid developments in spintronics,spin-based logic devices have emerged as promising tools for next-generation computing technologies.This paper provides a comprehensive review of recent advancements in spin ...Owing to rapid developments in spintronics,spin-based logic devices have emerged as promising tools for next-generation computing technologies.This paper provides a comprehensive review of recent advancements in spin logic devices,particularly focusing on fundamental device concepts rooted in nanomagnets,magnetoresistive random access memory,spin–orbit torques,electric-field modu-lation,and magnetic domain walls.The operation principles of these devices are comprehensively analyzed,and recent progress in spin logic devices based on negative differential resistance-enhanced anomalous Hall effect is summarized.These devices exhibit reconfigur-able logic capabilities and integrate nonvolatile data storage and computing functionalities.For current-driven spin logic devices,negative differential resistance elements are employed to nonlinearly enhance anomalous Hall effect signals from magnetic bits,enabling reconfig-urable Boolean logic operations.Besides,voltage-driven spin logic devices employ another type of negative differential resistance ele-ment to achieve logic functionalities with excellent cascading ability.By cascading several elementary logic gates,the logic circuit of a full adder can be obtained,and the potential of voltage-driven spin logic devices for implementing complex logic functions can be veri-fied.This review contributes to the understanding of the evolving landscape of spin logic devices and underscores the promising pro-spects they offer for the future of emerging computing schemes.展开更多
在现有全加器研究基础上,提出一种高性能全加器改进电路(improved full adder circuit,IFAC),通过改进全加器电路结构,优化电路元件工作数量,旨在提升加法器逻辑功能与运行状态。采用Candence软件搭载130 nm芯片锻造工艺,引入欧拉路径...在现有全加器研究基础上,提出一种高性能全加器改进电路(improved full adder circuit,IFAC),通过改进全加器电路结构,优化电路元件工作数量,旨在提升加法器逻辑功能与运行状态。采用Candence软件搭载130 nm芯片锻造工艺,引入欧拉路径快速判寻法设计其电路版图,验证版图规则的合理性,并利用版图验证工具Dracula对电路进行仿真测试,结果表明本文所设计的全加器较常规全加器在处理复杂网络精确度、传输延迟时间、低功耗稳定运行及芯片面积方面有所提升。展开更多
基金sponsored by the National Key Research and Development Program of China(Nos.2017YFA0206202 and 2022YFA1203904)the National Natural Science Foundation of China(No.52271160).
文摘Owing to rapid developments in spintronics,spin-based logic devices have emerged as promising tools for next-generation computing technologies.This paper provides a comprehensive review of recent advancements in spin logic devices,particularly focusing on fundamental device concepts rooted in nanomagnets,magnetoresistive random access memory,spin–orbit torques,electric-field modu-lation,and magnetic domain walls.The operation principles of these devices are comprehensively analyzed,and recent progress in spin logic devices based on negative differential resistance-enhanced anomalous Hall effect is summarized.These devices exhibit reconfigur-able logic capabilities and integrate nonvolatile data storage and computing functionalities.For current-driven spin logic devices,negative differential resistance elements are employed to nonlinearly enhance anomalous Hall effect signals from magnetic bits,enabling reconfig-urable Boolean logic operations.Besides,voltage-driven spin logic devices employ another type of negative differential resistance ele-ment to achieve logic functionalities with excellent cascading ability.By cascading several elementary logic gates,the logic circuit of a full adder can be obtained,and the potential of voltage-driven spin logic devices for implementing complex logic functions can be veri-fied.This review contributes to the understanding of the evolving landscape of spin logic devices and underscores the promising pro-spects they offer for the future of emerging computing schemes.
文摘在现有全加器研究基础上,提出一种高性能全加器改进电路(improved full adder circuit,IFAC),通过改进全加器电路结构,优化电路元件工作数量,旨在提升加法器逻辑功能与运行状态。采用Candence软件搭载130 nm芯片锻造工艺,引入欧拉路径快速判寻法设计其电路版图,验证版图规则的合理性,并利用版图验证工具Dracula对电路进行仿真测试,结果表明本文所设计的全加器较常规全加器在处理复杂网络精确度、传输延迟时间、低功耗稳定运行及芯片面积方面有所提升。
