Study of the temperature dependence of magnetic permeability, selectivity and D.C. resistivity of LaKMnMoO ₆

Abstract

The magnetic permeability of LaKMnMoO 6 has been investigated using a resonance circuit. The temperature dependence of both permeability and selectivity was plotted in the temperature range 130-300 K approximately. The D.C. resistivity was also investigated and plotted as a function of temperature, the sample shows a semiconducting to metallic transition with decreasing temperature in the vicinity of T C -the Curie temperature -where a peak in the magnetic permeability plot has also occurred. The fairly high values of permeability in the whole temperature range show that LaKMnMoO 6 may be considered as a high-permeability material useful in many electronic applications.

Thermoelectric Power and Magnetic Permeability of Cd0.4Mn0.6CoxFe2-xO4 ferrite system

“…Figure 2shows the resonance circuit used to determine the relative permeability μ for all compositions over a wide range of temperature [20]. Therefore, the resonance frequency f is given by [21]:…”