INFLUENCE OF THE Zn2+ AND Cd2+ ION CONTENTS UPON THE NATURAL SPIN RESONANCE FREQUENCY IN Ni-Zn AND Ni-Cd FERRITES
نویسندگان
چکیده
— The influence of the Zn and Cd ion contents upon the natural spin resonance in Ni-Zn and Ni-Cd ferrites has been investigated. Previous experiments by other authors have shown that substituting Zn ions for Ni ions leads to a change of the total effective anisotropy field and consequently of the natural spin resonance frequency fi. ft measurements have been carried out by using a coaxial line specially adapted to measure the complex permeability. From the/r values measured the total anisotropy energy values ^Thave been calculated by using the Snoek formula and have been compared for the two series of Ni-Zn and Ni-Cd ferrites which have been investigated.
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تاریخ انتشار 2016