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Proceedings Paper

Time asymmetry of magnetic noise
Author(s): Gianfranco Durin; Claudio Castellano; Francesca Colaiori; Stefano Zapperi
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Paper Abstract

We experimentally investigate the average shapes of magnetization avalanches with the goal to understand the origin of their time asymmetry. We performed measurements on amorphous and polycrystalline magnetic materials, showing that the asymmetry can depend on several parameters, such as the applied field rate, and the duration and size of the avalanche itself. We suggest, as a possible explanation, to investigate the effect of the eddy currents on the measured signal.

Paper Details

Date Published: 25 May 2004
PDF: 9 pages
Proc. SPIE 5469, Fluctuations and Noise in Materials, (25 May 2004); doi: 10.1117/12.546498
Show Author Affiliations
Gianfranco Durin, Istituto Elettrotecnico Nazionale Galileo Ferraris (Italy)
Claudio Castellano, INFM, Univ. degli Studi di Roma La Sapienza (Italy)
Francesca Colaiori, INFM, Univ. degli Studi di Roma La Sapienza (Italy)
Stefano Zapperi, INFM, Univ. degli Studi di Roma La Sapienza (Italy)

Published in SPIE Proceedings Vol. 5469:
Fluctuations and Noise in Materials
Dragana Popovic; Michael B. Weissman; Zoltan A. Racz, Editor(s)

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