Broadband optical measurement of AC magnetic susceptibility of magnetite nanoparticles
Soucaille, R; Sharifabad, ME; Telling, ND; et al.Hicken, RJ
Date: 13 February 2020
Journal
Applied Physics Letters
Publisher
AIP Publishing
Publisher DOI
Abstract
Characterization of magnetic nanoparticles in solution is challenging due to the interplay between magnetic relaxation and agglomeration.
The AC magnetic susceptibility of magnetite nanoparticles in water has been studied using magneto-optical methods in the frequency
range of 10 Hz–250 kHz. The Faraday effect is detected simultaneously ...
Characterization of magnetic nanoparticles in solution is challenging due to the interplay between magnetic relaxation and agglomeration.
The AC magnetic susceptibility of magnetite nanoparticles in water has been studied using magneto-optical methods in the frequency
range of 10 Hz–250 kHz. The Faraday effect is detected simultaneously with changes in the fluid configuration. It is shown that the relative
sensitivity to the magnetic and structural response can be adjusted by varying the wavelength, paving the way toward spatially resolved
studies at the micro-scale
Physics and Astronomy
Faculty of Environment, Science and Economy
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