R&D: Temperature Gradients as a Data Storage Principle
Work analyze thermodynamic principles underlying modern data storage systems, including RAM, HDD, flash memory, MRAM, FeRAM, and PCRAM, as well as other less well-known data storage mechanisms.
This is a Press Release edited by StorageNewsletter.com on February 14, 2025 at 2:18 pmEntropy has published an article written by Jeroen Schoenmaker, Pâmella Gonçalves Martins, and Julio Carlos Teixeira, Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC (UFABC), Santo André CEP 09210-580, SP, Brazil.
Abstract: “In this work, we analyze the thermodynamic principles underlying modern data storage systems, including Random Access Memory (RAM), hard disk drive (HDD), flash memory, magnetic RAM (MRAM), ferroelectric RAM (FeRAM), and phase-change RAM (PCRAM), as well as other less well-known data storage mechanisms. The analysis is conducted in the context of data storage and processing in relation to Landauer’s principle, with special emphasis on hysteresis. Analogous to how heat engines are characterized by thermodynamic cycles, data storage systems are examined in terms of the hysteresis loop of their fundamental data unit. We explore the role of heat in data storage systems. Afterward, we introduce the concept of temperature gradient memory (TeGraM) along with a detailed layout of a realizable device. Experimental results demonstrating this technology are also presented.“
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