论文标题

基于对称写作的级联内存计算和读取

Cascadable in-memory computing based on symmetric writing and read out

论文作者

Wang, Lizheng, Xiong, Junlin, Cheng, Bin, Dai, Yudi, Wang, Fuyi, Pan, Chen, Cao, Tianjun, Liu, Xiaowei, Wang, Pengfei, Chen, Moyu, Yan, Shengnan, Liu, Zenglin, Xiao, Jingjing, Xu, Xianghan, Wang, Zhenlin, Shi, Youguo, Cheong, Sang-Wook, Zhang, Haijun, Liang, Shi-Jun, Miao, Feng

论文摘要

使用Spintronic设备的内存计算的构件主要基于具有垂直界面各向异性(P-MTJ)的磁性隧道连接点。最终的不对称写入和读取操作在降低P-MTJ设备的缩小和直接脱层方面构成了挑战。在这里,我们建议可以在基于FE3Gete2和WTE2的垂直 - 动型自旋轨道(PASO)量子材料中实现一种新的对称写入和读出机制。我们证明,可以通过对Z-Spin转化率使用非常规的电荷来实现垂直磁化的无现场和确定性逆转。所得的磁态可以通过其内在的逆过程(即Z-Spin以进行电荷转换)容易探测。使用PASO量子材料作为基本构建块,我们实现了功能上完整的逻辑操作集和更复杂的非挥发性半个逻辑功能。我们的工作突出了PASO量子材料在开发可扩展节能和超快的自旋计算的潜力。

The building block of in-memory computing with spintronic devices is mainly based on the magnetic tunnel junction with perpendicular interfacial anisotropy (p-MTJ). The resulting asymmetric write and read-out operations impose challenges in downscaling and direct cascadability of p-MTJ devices. Here, we propose that a new symmetric write and read-out mechanism can be realized in perpendicular-anisotropy spin-orbit (PASO) quantum materials based on Fe3GeTe2 and WTe2. We demonstrate that field-free and deterministic reversal of the perpendicular magnetization can be achieved by employing unconventional charge to z-spin conversion. The resulting magnetic state can be readily probed with its intrinsic inverse process, i.e., z-spin to charge conversion. Using the PASO quantum material as a fundamental building block, we implement the functionally complete set of logic-in-memory operations and a more complex nonvolatile half-adder logic function. Our work highlights the potential of PASO quantum materials for the development of scalable energy-efficient and ultrafast spintronic computing.

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