Asymmetric Modulation on Exchange Field in a Graphene/BiFeO3 Heterostructure by External Magnetic Field

Hua Ding Song, Yan Fei Wu, Xin Yang, Zhaohui Ren, Xiaoxing Ke, Mert Kurttepeli, Gustaaf Van Tendeloo, Dameng Liu, Han Chun Wu, Baoming Yan, Xiaosong Wu, Chun Gang Duan, Gaorong Han, Zhi Min Liao*, Dapeng Yu

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

21 引用 (Scopus)

摘要

Graphene, having all atoms on its surface, is favorable to extend the functions by introducing the spin-orbit coupling and magnetism through proximity effect. Here, we report the tunable interfacial exchange field produced by proximity coupling in graphene/BiFeO3 heterostructures. The exchange field has a notable dependence with external magnetic field, and it is much larger under negative magnetic field than that under positive magnetic field. For negative external magnetic field, interfacial exchange coupling gives rise to evident spin splitting for N = 0 Landau levels and a quantum Hall metal state for N = 0 Landau level. Our findings suggest graphene/BiFeO3 heterostructures are promising for spintronics.

源语言英语
页(从-至)2435-2441
页数7
期刊Nano Letters
18
4
DOI
出版状态已出版 - 11 4月 2018

指纹

探究 'Asymmetric Modulation on Exchange Field in a Graphene/BiFeO3 Heterostructure by External Magnetic Field' 的科研主题。它们共同构成独一无二的指纹。

引用此