• R Aiyer

      Articles written in Bulletin of Materials Science

    • Permeability spectrum of garnets

      Om Prakash R Aiyer C M Srivastava

      More Details Abstract Fulltext PDF

      A detailed study of permeability spectra of polycrystalline pure and Aland Gd-Substituted garnets has been carried out for different values of grain diameter and magnetisation. The spectra are of three types—resonance, relaxed and mixed. It has been shown that the resonance spectra occur when the closure demains are absent and the domain wall is anchored at the grain boundary. The relaxed spectrum is found for domains having closure flux while the mixed spectrum is an indication of simulataneous presence of grains with and without closure domains.

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