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Theory of Faraday rotation in granular magnetic materials (1990)

Xia, T. K. ; Hui, P. M. ; Stroud, D.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 67 (1990), S. 2736-2741

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: We present a formalism to treat Faraday rotation (FR) in composite media. The method is not limited to low concentrations of magnetically active inhomogeneities and is thus useful for understanding the magneto-optical properties of such inhomogeneous media over the whole range of concentrations. It involves the calculation of an effective magnetic-field-dependent dielectric tensor @sεe using a tensor effective-medium approximation. To illustrate the technique, we present the results of several model calculations involving both paramagnetic and ferromagnetic metals. We find that such materials have strongly enhanced FR over a wide range of frequencies. The effects of particle shapes on FR are discussed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.345438

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