Relation between superparamagnetic relaxation and optical properties

J. Plon, M. Gadenne, P. Gadenne, C. Sella, C. Naud and C. Julien

Physica A: Statistical Mechanics and its Applications, 1997, vol. 241, issue 1, 183-187

Abstract: We study the influence of the transition between ferromagnetism and superparamagnetism on optical properties. The samples are thin nanocermet films where ferromagnetic monodomain inclusions of Ni are embedded in an AlN matrix. The optical measurements, performed on a Fourier transform spectrometer in the far infrared range, are compared with calculations of the dielectric function and the magnetic permeability using a model of the effective medium.

Keywords: Superparamagnetism; Nanocermet films; Far infrared measurements; Effective medium theory (search for similar items in EconPapers)
Date: 1997
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:241:y:1997:i:1:p:183-187

DOI: 10.1016/S0378-4371(97)00080-0

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