Spin-orbit coupling in magnetoelectric Ba3(Zn1-xCox)2Fe24O41 hexaferrites.
作者： Chao Xu , An-Lei Zhang , Zhenjie Feng , Wenlai Lu , Baojuan Kang
DOI: 10.1039/C9CP04783B
关键词:
摘要: The Z-type hexaferrites Ba3(Zn1−xCox)2Fe24O41 (x = 0.2, 0.4, 0.6, 0.8, defined as Z1–Z4) were synthesized by a sol–gel method. With increasing cobalt concentration, the origin of magnetoelectric (ME) coupling and effects crystal parameters, occupation ions, magnetocrystalline anisotropy (MCA) on ME current studied systematically. mechanism magnetic phase transition, revealing evolution order in temperature range 10–400 K, was discussed detail. Our results suggest that ferroelectricity Z1–Z4 originates from both inverse Dzyaloshinskii Moriya (DM) interaction p–d hybridization mechanism. In particular property is only dominated with spin–orbit coupling. This study provides an effective way to improve hexaferrites, which have potential applications design new electronic devices.
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