Superparamagnetism – a size effect

International Journal of Development Research

Article ID: 
3 pages
Research Article

Superparamagnetism – a size effect

Bandana Gogoi


In many ferromagnetic materials when the size of the particle is reduced to nanodimension, super behaviour called superparamagnetism occurs. The hysteresis loop change unusually and there is no remenance and coercive field. The M-H curve passes through the origin i.e. it needs no energy to bring back the sample from magnetised form to zero magnetisation.

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