Electromagnetic Waves 2011
DOI: 10.5772/16508
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The Temperature Behavior of Resonant and Non-resonant Microwave Absorption in Ni-Zn Ferrites

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Cited by 10 publications
(4 citation statements)
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“…Similarly, the ferromagnetic resonance peak at higher frequencies takes place at 6.55 GHz in the S1 ferrite and shifts to 7 GHz in S2 and 8.05 GHz in S3. Since the resonance frequency is proportional to an effective internal field, the higher corresponds with a stronger internal field due to the demagnetization effects rising from the porosity and the finer grains [20,21]. The shift of the spectrum towards higher frequencies is accompanied by the reduction of the respective permeability levels, which is in accordance with fundamental Snoek's law defining the product ( − 1) × [3].…”
Section: Static Magnetic Propertiessupporting
confidence: 60%
“…Similarly, the ferromagnetic resonance peak at higher frequencies takes place at 6.55 GHz in the S1 ferrite and shifts to 7 GHz in S2 and 8.05 GHz in S3. Since the resonance frequency is proportional to an effective internal field, the higher corresponds with a stronger internal field due to the demagnetization effects rising from the porosity and the finer grains [20,21]. The shift of the spectrum towards higher frequencies is accompanied by the reduction of the respective permeability levels, which is in accordance with fundamental Snoek's law defining the product ( − 1) × [3].…”
Section: Static Magnetic Propertiessupporting
confidence: 60%
“…ions having a strong preference to occupy A-sites leads to mixed spinel structure whose cation distributions are normal with respect to Zn and inverse from the viewpoint of Ni spinel structure [1][2][3]. In case of Zn, Cu and Co substituted Ni ferrite with chemical composition Nil_x_y_zZnxCuyCozFe 2 04 IOns occupy A-and B-sites in agreement with alignment…”
supporting
confidence: 51%
“…The change of molar ratios and consisting in the reduction of ions caused increase of , but the magnetic properties got worse. This magnetic behavior of ferrite samples is caused by redistribution of ions within tetrahedral and octahedral sublattices of spinel structure and the variations of the super-exchange interactions in these sublattices [6], [7]. The Curie temperature of the sample with the highest value of initial permeability is too low for practical use.…”
Section: Resultsmentioning
confidence: 96%