journal article·2021-01-01Open access

Implementation of complete Boolean logic functions in single spin–orbit torque device

Yunchi Zhao, Guang Yang, Jianxin Shen, Shuang Gao, Jingyan Zhang, Jie Qi, Haochang Lyu, Guoqiang Yu, Kui Jin, Shouguo Wang

AIP Advances· Volume 11· Issue 1

Abstract

All 16 Boolean logic functions in a single Ta/CoFeB/MgO device with perpendicular magnetic anisotropy were experimentally demonstrated based on the spin–orbit torque (SOT) effect. Furthermore, by combining with the voltage-controlled magnetic anisotropy (VCMA) effect, a novel SOT-MTJ (magnetic tunnel junction) prototype device with the assistance of the VCMA effect was further designed to perform magnetic field-independent logic operations. The numerical simulations were carried out, demonstrating the feasibility to realize all 16 Boolean logic functions in a single three-terminal device by applying the bias voltage and current injection as input variables. This approach provides a potential way toward the application of energy efficient spin-based logic, which is beyond the current von Neumann computing architecture.
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Research context

OpenAlex topics: Magnetic properties of thin films · Semiconductor materials and devices · Ferroelectric and Negative Capacitance Devices

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences 1 , Beijing 100190, China

School of Physical Sciences, University of Chinese Academy of Sciences 2 , Beijing 100049, China

Department of Materials Science and Metallurgy, University of Cambridge 3 , 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom

Beijing Advanced Innovation Center for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing 4 , Beijing 100083, China

CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences 5 , Ningbo 315201, China

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