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Trivalent cobalt in nickel-zinc ferrites—II. magnetic relaxations

Authors
Journal
Journal of Physics and Chemistry of Solids
0022-3697
Publisher
Elsevier
Publication Date
Volume
35
Issue
9
Identifiers
DOI: 10.1016/s0022-3697(74)80125-3

Abstract

Abstract In a number of Ni- and NiZn-ferrites containing Co 2+- and Co 3+-ions magnetic measurements of the initial permeability in the kHz range above room temperature reveal the presence of a relaxation process. From the measurements it can be concluded that Co 2+ is the anisotropic ion responsible for the relaxation. The Co 3+ ions and presumable cation vacancies in association with Co 3+ provide the means whereby Co 2+ is transported through the lattice.

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