Ultra-low-energy non-volatile straintronic computing using single multiferroic composites

Abstract

The primary impediment to continued downscaling of traditional charge-based electronic devices in accordance with Moore's law is the excessive energy dissipation that takes place in the device during switching of bits. One very promising solution is to utilize multiferroic heterostructures, comprised of a single-domain magnetostrictive nanomagnet strain-coupled to a piezoelectric layer, in which the magnetization can be switched between its two stable states while dissipating minuscule amount of energy. However, no efficient and viable means of computing is proposed so far. Here we show that such single multiferroic composites can act as universal logic gates for computing purposes, which we demonstrate by solving the stochastic Landau-Lifshitz-Gilbert (LLG) equation of magnetization dynamics in the presence of room-temperature thermal fluctuations. The proposed concept can overwhelmingly simplify the design of large-scale circuits and portend a highly dense yet an ultra-low-energy computing paradigm for our future information processing systems.

References in corpus (8)

• Hybrid spintronics and straintronics: A magnetic technology for ultra low energy computing and signal processing
• Bennett clocking of nanomagnetic logic using electrically induced rotation of magnetization in multiferroic single-domain nanomagnets
• Energy dissipation and switching delay in stress-induced switching of multiferroic devices in the presence of thermal fluctuations
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• Switching dynamics of a magnetostrictive single-domain nanomagnet subjected to stress
• Binary switching in a symmetric potential landscape
• Ultra-low-energy non-volatile straintronic computing using single multiferroic composites
• Fully electrically read-write device out of a ferromagnetic semiconductor

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• Critical analysis and remedy of switching failures in straintronic logic using Bennett clocking in the presence of thermal fluctuations
• Separating read and write units in multiferroic devices
• Area-Delay-Energy Tradeoffs of Strain-Mediated Multiferroic Devices
• Comment on some articles regarding magnetization switching and computing using strain-mediated multiferroic composites
• Ultra-low-energy Electric field-induced Magnetization Switching in Multiferroic Heterostructures
• Electric field-induced magnetization switching in interface-coupled multiferroic heterostructures: A highly-dense, non-volatile, and ultra-low-energy computing paradigm
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• Dynamical systems study in single-phase multiferroic materials
• Landauer limit of energy dissipation in a magnetostrictive particle
• Colossal stability of antiferromagnetically exchange coupled nanomagnets