Anomalous High-frequency Resistance of Ferromagnetic Metals

@article{Griffiths1946AnomalousHR,
  title={Anomalous High-frequency Resistance of Ferromagnetic Metals},
  author={J. Griffiths},
  journal={Nature},
  year={1946},
  volume={158},
  pages={670-671}
}
THE energy lost by a high-frequency current flowing in a conductor is dependent on the product of the electrical resistivity ρ and the magnetic permeability μ of the conductor, and this fact has been used by several investigators1,2,3 to determine the effective permeability of ferromagnetic metals at high frequencies. 
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IT is well known that the magnetic permeability of ferromagnetic materials decreases towards unity in the region of centimetre waves. The measurements by Hoag and Jones1 extend only down to 20 cm.Expand
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Methods of measuring the permeability of ferromagnetic materials in high-frequency fields are described, and the main results obtained by various investigators are collated and discussed. It appearsExpand
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