Fe-oxide Nanoparticles: a natural playground for testing the ISP model

8th International Conference on Fine Particle Magnetism

Allia, P.^1

Politecnico di Torino, DISAT, Corso Duca degli Abruzzi 24, 10129 Torino, Italy^1

关键词: Blocking temperature;    Dipolar interaction;    Fe oxide;    Magnetic dipolar interactions;    Superparamagnetics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/521/1/012008/pdf
DOI  :  10.1088/1742-6596/521/1/012008

来源: IOP

【 摘 要 】

Magnetic dipolar interaction plays a major role in systems of ferrimagnetic Fe-oxide nanoparticles. Dipolar interaction plays a role over a wide range of temperatures above blocking temperature and results in the onset of the Interacting Superparamagnetic (ISP) regime. In this paper, distinctive aspects and basic issues of the ISP model are discussed by exploiting the experimental data obtained in well-characterized magnetite nanoparticles.