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arXiv · 1803.02552

Ultra-Fast Ferrimagnetic All Spin Logic Device

Yue Zhang·Zhizhong Zhang·Zhenyi Zheng·Jiang Nan·Guanda Wang·Kun Zhang·Yu Wang·Wei Yun·Youguang Zhang·Weisheng Zhao
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Abstract

All spin logic device (ASLD) blazes an alternative path for realizing ultra-low power computing in the Post-Moore era. However, initial device structure relying on ferromagnetic input/output and spin transfer torque (STT) driven magnetization switching degrades its performance and even hinders its realization. In this paper, we propose an ASLD based on rare-earth (RE)-transition-metal (TM) ferromagnetic alloy that can achieve an ultra-high frequency up to terahertz. The spin orbit torque (SOT) induced fast precession near the spin angular momentum compensated point is investigated through the macrospin model. Combining the non-local spin current diffusing from the input to the output, a deterministic picosecond switching can be realized without any external magnetic field. Our results show that ASLD has the potential to exceed the performance of mainstream computing.

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Yue Zhang, Zhizhong Zhang, Zhenyi Zheng, Jiang Nan, Guanda Wang, Kun Zhang, Yu Wang, Wei Yun, Youguang Zhang, Weisheng Zhao. 2018-03-07. Ultra-Fast Ferrimagnetic All Spin Logic Device. https://arxiv.org/abs/1803.02552

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