Spin logic enabled by current vector adder

In order to advance the silicon integrated circuit technology, researchers have been searching for memory and logic devices with new physical state variables other than charge. Spin logic device that adds one degree of freedom-electron spin to charge has been considered as a promising candidate due to its low power consumption, built-in memory, and high scalability. Here, we demonstrate that a new variable - current direction on the sample can be introduced into the spin logic operation. The current direction of the sample is considered as a vector. For the various input currents along different directions, the direction of vector sum (vector adder) determines the output and therefore can enable complex logic functions. We have realized the basic Boolean logic gates including AND, OR, NAND, NOR, and even complicated IMPLY in a single device and further constructed a full adder with only 2 devices.

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Publication Details

Journal
Nature Communications
Published
2025-03-27
DOI
https://doi.org/10.1038/s41467-025-58225-3
Citations
4
Primary Topic
Semiconductor materials and devices
Type
article
Field-Weighted Citation Impact
2.92

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article

Spin logic enabled by current vector adder

Guowei Zhou, Rui Xiao, Lizhu Ren, Tieyang Zhao et al.
4 citations
Nature Communications
Semiconductor materials and devices
2.92
article

Spin logic enabled by current vector adder

Guowei Zhou, Rui Xiao, Lizhu Ren, Tieyang Zhao, Qihan Zhang, Qidong Xie, Lanxin Jia, Shu Shi, Jinkai Wang, Liang Liu, Yue Zhang, Tao Zeng, Jingsheng Chen, Youdi Gu, Chenghang Zhou, Zhenyi Zheng
article en
4 citations

Abstract

In order to advance the silicon integrated circuit technology, researchers have been searching for memory and logic devices with new physical state variables other than charge. Spin logic device that adds one degree of freedom-electron spin to charge has been considered as a promising candidate due to its low power consumption, built-in memory, and high scalability. Here, we demonstrate that a new variable - current direction on the sample can be introduced into the spin logic operation. The current direction of the sample is considered as a vector. For the various input currents along different directions, the direction of vector sum (vector adder) determines the output and therefore can enable complex logic functions. We have realized the basic Boolean logic gates including AND, OR, NAND, NOR, and even complicated IMPLY in a single device and further constructed a full adder with only 2 devices.

Nature CommunicationsVol. 16(1)
Chongqing University (CN), National University of Singapore (SG), Shanghai Jiao Tong University (CN), Ministry of Education (RW), Suzhou Research Institute (CN), Beihang University (CN), Shanxi Normal University (CN)
Ministry of Education - Singapore, National Natural Science Foundation of China
Affordable and clean energy
Openalex Percentile: Top 10%
Semiconductor materials and devices
2.92
DOIOpen Access PDFOpenAlex
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