Effect of initial susceptibility and relaxation dynamics on radio frequency alternating magnetic field induced heating in superparamagnetic nanoparticle dispersions

[Display omitted] •SAR increased with initial susceptibility of the MNP.•Relaxation dynamics alone is not sufficient to account SAR.•Initial susceptibility decreased with increasing sample concentration.•SAR decreased with enhancement of dipolar interaction.•Neel relaxation dynamics was largely unaf...

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Veröffentlicht in:	Journal of magnetism and magnetic materials 2019-09, Vol.486, p.165267, Article 165267
Hauptverfasser:	Ranoo, Surojit, Lahiri, B.B., Vinod, Sithara, Philip, John
Format:	Artikel
Sprache:	eng
Schlagworte:	Brownian relaxation Dispersions Dynamics Efficiency Heating Hysteresis loops Initial susceptibility Iron oxides Linear response theory Magnetic fields Magnetic nanofluids Magnetic permeability Magnetic saturation Nanofluids Nanoparticles Neel relaxation Oleic acid Radio frequency Specific absorption rate Viscosity
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