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GARCÍA ORTIZ ENRIQUE_7934096.pdf (1.47 MB)

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Bachelor thesis

Publication date

2023-06

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cc-by-nc-nd (c) García, 2023
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/201083

Memory properties of spatially-extended disordered materials

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Abstract

Memory is a fascinating phenomenon that has many interesting applications. This work focuses on Return-Point Memory (RPM), which is a particular type of memory present on ferromagnetic, spatially-extended disordered systems that manifests through quasistatic hysteresis. By modelling these materials using the fluctuationless Random Field Ising Model (T=0 RFIM) and computing the magnetization trajectories via a cellular automaton, we observe RPM, thus proving the validity of the model for this purpose, and analyze it qualitatively both at macroscopic and microscopic scales. We also perform a study on energy dissipation in this model and its relation with hysteresis and Barkhausen magnetization jumps

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Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2023, Tutor: Jordi Ortín Rull

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Materials, Memòria, Treballs de fi de grau

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Materials, Memory, Bachelor's theses

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Treballs Finals de Grau (TFG) - Física

Citation

GARCÍA ORTIZ, Enrique. Memory properties of spatially-extended disordered materials. [consulted: 17 of August of 2026]. Available at: https://hdl.handle.net/2445/201083

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