Investigation of the Anisotropy in Froze
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J.F. Saenger; K. Skeff Neto; P.C. Morais; M.H. Sousa; F.A. Tourinho
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Article
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1998
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Elsevier Science
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English
⚖ 104 KB
Magnetic resonance is used to obtain the temperature dependence of the magnetic anisotropy of noninteracting NiFe 2 O 4 nanoparticles from 100 to 250 K. The 10.3 nm particles are dispersed as a stable ionic magnetic fluid which is frozen under the action of an external field to perform angular varia