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Parametric modelling of magnetic fine particle systems: the role of single domain particle size distributions and magnetic anisotropy

Hoon, Steve R. and Lambrick, David B. (2005) Parametric modelling of magnetic fine particle systems: the role of single domain particle size distributions and magnetic anisotropy. ISSN 1742-6588

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Abstract

We demonstrate the effects and role of anisotropy and particle size distributions upon the values of constitutive parameters determined from experimental M(H) loops of single domain nanoparticle systems. We employ experimental and magnetic material parameters as inputs to a numerical programme run from a graphical user interface (GUI) to permit modelling and interpretation of experimental data and assessment of the stability of the constitutive parameters so derived and characterisation of the departures observed from pure Langevin behaviour.

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