Superparamagnetic relaxation of weakly interacting particles

Publication: Research - peer-reviewJournal article – Annual report year: 1994

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The influence of particle interactions on the superparamagnetic relaxation time has been studied by Mossbauer spectroscopy in samples of maghemite (gamma-Fe2O3) particles with different particle sizes and particle separations. It is found that the relaxation time decreases with decreasing particle interactions. A new model for the influence of interactions on the superparamagnetic relaxation has been derived and it is shown that this model can explain the observations.
Original languageEnglish
JournalPhysical Review Letters
Publication date1994
Volume72
Issue20
Pages3278-3281
ISSN0031-9007
DOIs
StatePublished

Bibliographical note

Copyright (1994) by the American Physical Society.

CitationsWeb of Science® Times Cited: 328

Keywords

  • PEAK, SUSCEPTIBILITY PHENOMENA, SYSTEM, MOSSBAUER-SPECTRA, GLASS, DEPENDENCE, TEMPERATURE
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