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Christian Binek Publications
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Document Type
Article
Date of this Version
May 1998
Abstract
The field and temperature dependence of the complex low-frequency susceptibility of the metamagnet FeBr2 exhibits large anomalies in the vicinity of the second-order phase boundary Hc(T). The low-frequency losses reflect polydispersive dynamics with a broad distribution of relaxation times peaking at τ ≈ 0.2 s. The dispersion, χ versus ƒ, is well described within Chamberlin's model of dynamically coupled domains. The heterogeneous glass-like response gives rise to the intuitive picture of a magnetic fluid of high viscosity.
Comments
Published in the Journal of Magnetism and Magnetic Materials. Available online May 14, 1998. Published in November 1997, pages 272-274.