Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 322, Issue 9-12, Pages 1682-1685Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2009.03.025
Keywords
Magnetic fluid; Complex magnetic susceptibility; Ferrimagnetic resonance
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A new experimental method to determine the precessional decay time, tau(0), in a strong polarizing field, H, is proposed. The method is based on analysis of the after-effect function of a magnetic fluid at resonance and the experimental results obtained for a sample with Mn0.3Fe0.7Fe2O4 particles reveal that in the region of strong H, tau(0) decreases in a similar manner to the precessional decay time of the Landau-Lifshitz equation. (C) 2009 Elsevier B. V. All rights reserved.
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