Influence of Interfacial Exchange Interaction on the Two-Phase Relaxation Time of Superparamagnetic Nanoparticles

Leonid L. Afremov; Ilia G. Iliushin

doi:10.4028/www.scientific.net/AMR.893.153

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 893Influence of Interfacial Exchange Interaction on...

Influence of Interfacial Exchange Interaction on the Two-Phase Relaxation Time of Superparamagnetic Nanoparticles

Abstract:

Within the frame of two-phase superparamagnetic nanoparticles the effect of magnetic and geometric properties of superparamagnetic nanoparicles on the time of their magnetic relaxation has been defined. With increasing of volume the time of relaxation grows rapidly. Metastability conditions of magnetic states have been developed. Growth of exchange constant magnitude of interphase interaction results in increasing of relaxation time regardless of exchange constant sign.

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Periodical:

Advanced Materials Research (Volume 893)

Pages:

153-157

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.893.153

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Online since:

February 2014

Authors:

Leonid L. Afremov, Ilia G. Iliushin*

Keywords:

Core-Shell Nanoparticles, Critical Field, Interphase Exchange Interaction, Magnetic States, Metastable Magnetic States, Relaxation Time, Superparamagnetic Particles

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