Landauer limit of energy dissipation in a magnetostrictive particle

Abstract

According to Landauer's principle, a minimum amount of energy proportional to temperature must be dissipated during the erasure of a classical bit of information compensating the entropy loss, thereby linking the information and thermodynamics. Here we show that the Landauer limit of energy dissipation is achievable in a shape-anisotropic single-domain magnetostrictive nanomagnet having two mutually anti-parallel degenerate magnetization states that store a bit of information. We model the magnetization dynamics using stochastic Landau-Lifshitz-Gilbert equation in the presence of thermal fluctuations and show that on average the Landauer bound is satisfied, i.e., it accords to the generalized Landauer's principle for small systems with stochastic fluctuations.

References in corpus (18)

• A nonequilibrium equality for free energy differences
• The Entropy Production Fluctuation Theorem and the Nonequilibrium Work Relation for Free Energy Differences
• Ultimate physical limits to computation
• Information heat engine: converting information to energy by feedback control
• The Nonequilibrium Thermodynamics of Small Systems
• The Physics of Maxwell's demon and information
• Minimal Energy Cost for Thermodynamic Information Processing: Measurement and Information Erasure
• Identification of the dominant precession damping mechanism in Fe, Co, and Ni by first-principles calculations
• Work and information processing in a solvable model of Maxwell's demon
• Hybrid spintronics and straintronics: A magnetic technology for ultra low energy computing and signal processing
• Energy dissipation and switching delay in stress-induced switching of multiferroic devices in the presence of thermal fluctuations
• Memory erasure in small systems
• Switching dynamics of a magnetostrictive single-domain nanomagnet subjected to stress
• Breakdown of the Landauer bound for information erasure in the quantum regime
• Validity of Landauer's principle in the quantum regime
• Binary switching in a symmetric potential landscape
• Ultra-low-energy non-volatile straintronic computing using single multiferroic composites
• Critical analysis and remedy of switching failures in straintronic logic using Bennett clocking in the presence of thermal fluctuations

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• Ultralow Energy Analog Straintronics Using Multiferroic Composites
• Ultra-low-energy Electric field-induced Magnetization Switching in Multiferroic Heterostructures
• Comment on some articles regarding magnetization switching and computing using strain-mediated multiferroic composites
• Colossal stability of antiferromagnetically exchange coupled nanomagnets