期刊
APPLIED PHYSICS LETTERS
卷 109, 期 8, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4961615
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资金
- National Natural Science Foundation of China [51202153, 11274237, 11474211]
- Open Foundation of State Key Laboratory of Electronic Thin Films and Integrated Devices [KFJJ201503]
The room-temperature multiferroic and magnetocapacitance (MC) effects of polycrystalline M-type hexaferrite BaFe10.2Sc1.8O19 have been investigated. The results show that the magnetic moments of insulating BaFe10.2Sc1.8O19 can be manipulated by the electric field at room temperature, indicating the existence of magnetoelectric coupling. Moreover, large MC effects are also observed around the room temperature. A frequency dependence analysis shows that the Maxwell-Wagner type magnetoresistance effect is the dominant mechanism for MC effects at low frequencies. Both the magnetoelectric-type and non-magnetoelectric-type spin-phonon couplings contribute to the MC effects at high frequencies with the former being the dominant mechanism. The above results show that the hexaferrite BaFe10.2Sc1.8O19 is a room-temperature multiferroic material that can be potentially used in magnetoelectric devices. Published by AIP Publishing.
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