Superparamagnetic relaxation of weakly interacting particles
Year: 1994
Type: article
Abstract: The influence of particle interactions on the superparamagnetic relaxation time has been studied by M\"ossbauer spectroscopy in samples of maghemite (y-${\mathrm{Fe}}_{2}$${\mathrm{O}}_{3}$) 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 superparamagetic relaxation has been derived and it is shown that this model can explain the observations.
Source: Physical Review Letters
Authors: Steen Mørup, Elisabeth Tronc
Institutions: Technical University of Denmark, Sorbonne Université
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2033855990