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Title: Waiting-time statistics in magnetic systems
Authors: Sousa, Ivandson Praeiro de
Lima, Gustavo Zampier dos Santos
Corrêa, Marcio Assolin
Sommer, Rubem Luis
Corso, Gilberto
Bohn, Felipe
Keywords: Condensed-matter physics;Statistical physics;Thermodynamics and nonlinear dynamics
Issue Date: 16-Jun-2020
Publisher: Nature Research
Citation: SOUSA, Ivandson Praeiro de; LIMA, Gustavo Zampier dos Santos; CORREA, Marcio Assolin; SOMMER, Rubem Luis; CORSO, Gilberto; BOHN, Felipe. Waiting-time statistics in magnetic systems. Scientific Reports, [S.L.], v. 10, n. 1, p. 9692-9692, 16 jun. 2020. Disponível em: Acesso em: 20 nov. 2020.
Portuguese Abstract: Many complex systems, from earthquakes and financial markets to Barkhausen effect in ferromagnetic materials, respond with a noise consisting of discrete avalanche-like events with broad range of sizes and durations, separated by waiting times. Here we focus on the waiting-time statistics in magnetic systems. By investigating the Barkhausen noise in amorphous and polycrystalline ferromagnetic films having different thicknesses, we uncover the form of the waiting-time distribution in time series recorded from the irregular and irreversible motion of magnetic domain walls. Further, we address the question of if the waiting-time distribution evolves with the threshold level, as well as with the film thickness and structural character of the materials. Our results, besides informing on the temporal avalanche correlations, disclose the waiting-time statistics in magnetic systems also bring fingerprints of the universality classes of Barkhausen avalanches and a dimensional crossover in the domain wall dynamics
ISSN: 2045-2322
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CCET - DFTE - Artigos publicados em periódicos
ECT - Artigos publicados em periódicos

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