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arXiv · 2101.03448

A Thermodynamic Core using Voltage-Controlled Spin-Orbit-Torque Magnetic Tunnel Junctions

Albert Lee·Bingqian Dai·Di Wu·Hao Wu·Robert N Schwartz·Kang L Wang
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Abstract

We present a magnetic implementation of a thermodynamic computing fabric. Magnetic devices within computing cores harness thermodynamics through its voltage-controlled thermal stability; while the evolution of network states is guided by the spin-orbit-torque effect. We theoretically derive the dynamics of the cores and show that the computing fabric can successfully compute ground states of a Boltzmann Machine. Subsequently, we demonstrate the physical realization of these devices based on a CoFeB-MgO magnetic tunnel junction structure. The results of this work pave the path towards the realization of highly efficient, high-performance thermodynamic computing hardware. Finally, this paper will also give a perspective of computing beyond thermodynamic computing.

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Albert Lee, Bingqian Dai, Di Wu, Hao Wu, Robert N Schwartz, Kang L Wang. 2021-01-10. A Thermodynamic Core using Voltage-Controlled Spin-Orbit-Torque Magnetic Tunnel Junctions. https://doi.org/10.1088/1361-6528%2Fabeb9b

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