Duan, Chun-Gang

Han, Gaorong

Ke, Xiaoxing

Kurttepeli, Mert

Liao, Zhi-Min

Liu, Dameng

Ren, Zhaohui

Song, Hua-Ding

Van Tendeloo, Gustaaf

Wu, Han-Chun

Wu, Xiaosong

Wu, Yan-Fei

Yan, Baoming

Yang, Xin

Yu, Dapeng

Abstract: 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 not equal 0 Landau levels and a quantum Hall metal state for N = 0 Landau level. Our findings suggest graphene/BiFeO3 heterostructures are promising for spintronics

Institutional Repository Universiteit Antwerpen

Asymmetric modulation on exchange field in a graphene/BiFeO3 heterostructure by external magnetic field

Asymmetric modulation on exchange field in a graphene/BiFeO3 heterostructure by external magnetic field

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Institutional Repository Universiteit Antwerpen