Magnetic field controllable electric polarization in Y-type hexaferrite Ba0.5Sr1.5Co2Fe12O22

We report the magnetic properties and the magnetoelectric effect in Y-type hexaferrite polycrystalline sample of Ba0.5Sr1.5Co2Fe12O22 (BSCFO). The magnetic critical temperature of BSCFO is 620 K, and the low-temperature helical magnetic order can hold up to 255 K. The isothermal magnetization curves...

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Bibliographic Details
Published inJournal of applied physics Vol. 118; no. 9
Main Authors Wang, Guohua, Cao, Shixun, Cao, Yiming, Hu, Shunbo, Wang, Xinyan, Feng, Zhenjie, Kang, Baojuan, Chai, Yisheng, Zhang, Jincang, Ren, Wei
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 07.09.2015
Subjects
Applied physics
Critical temperature
Electric polarization
Ferromagnetism
Magnetic fields
Magnetic properties
Magnetism
Magnetization curves
Multiferroic materials
Stability
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Summary:We report the magnetic properties and the magnetoelectric effect in Y-type hexaferrite polycrystalline sample of Ba0.5Sr1.5Co2Fe12O22 (BSCFO). The magnetic critical temperature of BSCFO is 620 K, and the low-temperature helical magnetic order can hold up to 255 K. The isothermal magnetization curves sustain ferromagnetic hysteresis from 10 K to 300 K. Under external magnetic fields, the magnetic field induced electric polarization is observed up to 150 K. The magnitude and the sign of the electric polarization can be controlled by the applied magnetic field. These magnetic and magnetoelectric results provide the promise of the studied new hexaferrite as a potential multiferroic material.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4929956