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Magnetic Behavior of γ-Fe 2 O 3 Nanocrystals Dispersed in Colloidal Silica Particles

✍ Scribed by Tartaj, Pedro; González-Carreño, Teresita; Serna, Carlos J.

Book ID
118004275
Publisher
American Chemical Society
Year
2003
Tongue
English
Weight
89 KB
Volume
107
Category
Article
ISSN
0022-3654

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Dynamical magnetic behavior of interacti
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The dynamical behavior of g-Fe 2 O 3 particles dispersed in a polymer have been investigated by a.c. susceptibility and Mo ¨ssbauer spectroscopy measurements. The effect of interparticle interactions on the relaxation time is satisfactorily described by a superparamagnetic model where the dipolar en