Electric and magnetic properties of Ta-doped polycrystalline Mn-Zn ferrite

Y. Yamamoto; A. Makino; T. Nikaidou

doi:10.1051/jp4:1997138

Electric and magnetic properties of Ta-doped polycrystalline Mn-Zn ferrite

Y. Yamamoto, A. Makino, T. Nikaidou

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The effect of Ta2O5 additive on the electric and magnetic properties of MnZh ferrites with fine grain size was studied. A adding small amounts of Ta2O5 to the MnZn ferrite increased electric resistivity, while an excessive addition of Ta2O5 caused decrease in resistivity without significant grain growth. In a small amount of Ta2O5 the change in the electric resistivity can be explained by Ta5+ substitution for Fe³⁺ entailing disappearance of the oxygen defects. The excessive addition of Ta2O5 created the oxygen defects and the electrons which are promoted by the metallic ion defects and the thermal dissociation of oxygen.

Original language	English
Pages (from-to)	C1-121-C1-122
Journal	Journal De Physique. IV : JP
Volume	7
Issue number	1
DOIs	https://doi.org/10.1051/jp4:1997138
Publication status	Published - 1997 Mar
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1051/jp4:1997138

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abstract = "The effect of Ta2O5 additive on the electric and magnetic properties of MnZh ferrites with fine grain size was studied. A adding small amounts of Ta2O5 to the MnZn ferrite increased electric resistivity, while an excessive addition of Ta2O5 caused decrease in resistivity without significant grain growth. In a small amount of Ta2O5 the change in the electric resistivity can be explained by Ta5+ substitution for Fe3+ entailing disappearance of the oxygen defects. The excessive addition of Ta2O5 created the oxygen defects and the electrons which are promoted by the metallic ion defects and the thermal dissociation of oxygen.",

author = "Y. Yamamoto and A. Makino and T. Nikaidou",

year = "1997",

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AU - Yamamoto, Y.

AU - Makino, A.

AU - Nikaidou, T.

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Y1 - 1997/3

N2 - The effect of Ta2O5 additive on the electric and magnetic properties of MnZh ferrites with fine grain size was studied. A adding small amounts of Ta2O5 to the MnZn ferrite increased electric resistivity, while an excessive addition of Ta2O5 caused decrease in resistivity without significant grain growth. In a small amount of Ta2O5 the change in the electric resistivity can be explained by Ta5+ substitution for Fe3+ entailing disappearance of the oxygen defects. The excessive addition of Ta2O5 created the oxygen defects and the electrons which are promoted by the metallic ion defects and the thermal dissociation of oxygen.

AB - The effect of Ta2O5 additive on the electric and magnetic properties of MnZh ferrites with fine grain size was studied. A adding small amounts of Ta2O5 to the MnZn ferrite increased electric resistivity, while an excessive addition of Ta2O5 caused decrease in resistivity without significant grain growth. In a small amount of Ta2O5 the change in the electric resistivity can be explained by Ta5+ substitution for Fe3+ entailing disappearance of the oxygen defects. The excessive addition of Ta2O5 created the oxygen defects and the electrons which are promoted by the metallic ion defects and the thermal dissociation of oxygen.

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Electric and magnetic properties of Ta-doped polycrystalline Mn-Zn ferrite

Abstract

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