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oai:recercat.cat:2445/106662025-12-04T20:46:45Zcom_2072_1057col_2072_478822col_2072_478917

Normalization factors for magnetic relaxation of small particle systems in non-zero magnetic field. Balcells i Argemí, Lluís Iglesias, Òscar Labarta, Amílcar Fenòmens de relaxació Partícules (Matèria) Magnetisme Relaxation phenomena Particles Magnetism We critically discuss relaxation experiments in magnetic systems that can be characterized in terms of an energy barrier distribution, showing that proper normalization of the relaxation data is needed whenever curves corresponding to different temperatures are to be compared. We show how these normalization factors can be obtained from experimental data by using the Tln (t/t0) scaling method without making any assumptions about the nature of the energy barrier distribution. The validity of the procedure is tested using a ferrofluid of Fe3O4 particles. 2009-12-29T11:36:01Z 2009-12-29T11:36:01Z 1997 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0163-1829 https://hdl.handle.net/2445/10666 146031 eng Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.55.8940 Physical Review B, 1997, vol. 55, núm. 14, p. 8940-8944 http://dx.doi.org/10.1103/PhysRevB.55.8940 (c) The American Physical Society, 1997 info:eu-repo/semantics/openAccess 5 p. application/pdf The American Physical Society Articles publicats en revistes (Física de la Matèria Condensada)