Study on dielectric and magnetic properties of Ho3Fe5O12 ceramics

Ho3Fe5O12 ceramics with garnet structure were prepared by the solid-state reaction method. The results revealed the existence of Fe2+ ions have intensive influence on dielectric and magnetic properties of Ho3Fe5O12 ceramics, which could be further confirmed by oxygen treatment. With a magnetic field...

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Veröffentlicht in:	Physica. B, Condensed matter Condensed matter, 2012-02, Vol.407 (3), p.485-488
Hauptverfasser:	Su, Jie, Lu, Xiaomei, Zhang, Chao, Zhang, Junting, Sun, Hui, Ju, Changcheng, Wang, Zhijun, Min, Kangli, Huang, Fengzhen, Zhu, Jinsong
Format:	Artikel
Sprache:	eng
Schlagworte:	Ceramics Condensed matter Condensed matter: electronic structure, electrical, magnetic, and optical properties Dielectric properties Dielectric properties of solids and liquids Dielectrics Dielectrics, piezoelectrics, and ferroelectrics and their properties Domain effects, magnetization curves, and hysteresis Exact sciences and technology Garnets Joining Magnetic fields Magnetic properties Magnetic properties and materials Magnetically ordered materials: other intrinsic properties Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects Permittivity (dielectric function) Physics Saturation moments and magnetic susceptibilities
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Zusammenfassung:	Ho3Fe5O12 ceramics with garnet structure were prepared by the solid-state reaction method. The results revealed the existence of Fe2+ ions have intensive influence on dielectric and magnetic properties of Ho3Fe5O12 ceramics, which could be further confirmed by oxygen treatment. With a magnetic field lower than 10 kOe, the ME coefficient reaches 33 ps m-1 at room temperature. And the ME coupling was further verified by dielectric anomaly near Neel temperature.
ISSN:	0921-4526 1873-2135
DOI:	10.1016/j.physb.2011.11.020