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|Title||Improvement of electric and magnetic properties for Li spinel ferrite by divalent Ni2+ ions substitution|
|Title in Arabic||تأثير أيونات الزنك الثنائية على الخواص الكهربية والمغناطيسية لليثيوم اسبنل فريت|
In the present work magnetic, electric and dielectric properties are investigated for mixed ferrite Li0.5(1-x)NixFe2.5-0.5xO4 ( where x=0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) which are prepared from high purity oxides using standard ceramic technique. The net magnetization (M) was measured at room temperature in the range of the applied field [200-2650 (A/m)]. The results indicated that the M decreased with increasing of the ions. The highest value of M was registered for the sample of x=0.0, where the lowest value was registered for the samples of x=1.0. The inductance was measured as a function of temperature to determine the Curie temperature (It is the temperature which the material transform from ferrimagnetic to paramagnetic . It was found that, the Curie temperature decreased with increasing of the Ni2+ ions. Complex dielectric constant ( ), dielectric loss tangent ( ) and AC conductivity ( ) were investigated in the frequency range of at room temperature. It was found that, the and were decreased continuously, while was increased with increasing of the applied frequency.
|Publisher||الجامعة الإسلامية - غزة|
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