ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
An enhancement of negative Faraday rotation in a dilute ferrofluid was reported near the wavelength of 0.5 μm by Yusuf. The observed phenomenon was explained in terms of a "small particle resonance.'' The premise of the above explanation is debatable. In order to give a more detailed explanation, measurements of Faraday rotation and magnetobirefringence spectra in dense ferrofluid thin films are reported from 0.5 to 2.7 μm, and a mathematical model is derived taking into account a skew-symmetric dielectric tensor for ferrite particles. The experiments confirm that the negative Faraday rotation is predominantly caused by the wavelength dependence of the off-diagonal elements εfxy(λ) of the dielectric tensor of the magnetic particles themselves.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.352727