Physics-Based Models for Magneto-Electric Spin-Orbit Logic Circuits

IF 2 Q3 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE IEEE Journal on Exploratory Solid-State Computational Devices and Circuits Pub Date : 2022-01-14 DOI:10.1109/JXCDC.2022.3143130

Hai Li;Dmitri E. Nikonov;Chia-Ching Lin;Kerem Camsari;Yu-Ching Liao;Chia-Sheng Hsu;Azad Naeemi;Ian A. Young

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引用次数: 3

Abstract

Spintronic devices provide a promising beyond-complementary metal-oxide-semiconductor (CMOS) device option, thanks to their energy efficiency and compatibility with CMOS. To accurately capture their multiphysics dynamics, a rigorous treatment of both spin and charge and their inter-conversion is required. Here, we present physics-based device models based on

$4\times4$

matrices for the spin-orbit coupling (SOC) part of the magneto-electric spin-orbit (MESO) device. Also, a more rigorous physics model of ferroelectric and magnetoelectric (ME) switching of ferromagnets, based on Landau–Lifshitz–Gilbert (LLG) and Landau–Khalatnikov (LK) equations, are presented. With the combined model implemented in a SPICE circuit simulator environment, simulation results were obtained which show feasibility of the MESO implementation and the functional operation of buffers, synchronous oscillators, and majority gates.

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磁电自旋轨道逻辑电路的物理模型

自旋电子器件提供了一个有前途的超越互补金属氧化物半导体(CMOS)器件的选择，由于它们的能量效率和与CMOS的兼容性。为了准确地捕捉它们的多物理场动力学，需要对自旋和电荷及其相互转换进行严格的处理。在这里，我们提出了基于$4\times4$矩阵的磁电自旋轨道(MESO)器件自旋轨道耦合(SOC)部分的物理器件模型。此外，基于Landau-Lifshitz-Gilbert (LLG)和Landau-Khalatnikov (LK)方程，提出了一个更严格的铁磁体铁电和磁电(ME)切换的物理模型。在SPICE电路仿真环境中实现了该组合模型，仿真结果表明了MESO实现的可行性以及缓冲器、同步振荡器和多数门的功能运行。

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