Magnetic proximity effect in graphene coupled to a BiFe O3 nanoplate

Yan Fei Wu; Hua Ding Song; Liang Zhang; Xin Yang; Zhaohui Ren; Dameng Liu; Han Chun Wu; Jansheng Wu; Jin Guang Li; Zhenzhao Jia; Baoming Yan; Xiaosong Wu; Chun Gang Duan; Gaorong Han; Zhi Min Liao; Dapeng Yu

doi:10.1103/PhysRevB.95.195426

Magnetic proximity effect in graphene coupled to a BiFe O3 nanoplate

Yan Fei Wu, Hua Ding Song, Liang Zhang, Xin Yang, Zhaohui Ren, Dameng Liu, Han Chun Wu, Jansheng Wu, Jin Guang Li, Zhenzhao Jia, Baoming Yan, Xiaosong Wu, Chun Gang Duan, Gaorong Han, Zhi Min Liao^*, Dapeng Yu

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

Abstract

Graphene, a very intriguing two-dimensional Dirac electronic system with high carrier mobility, is promising for spintronics. However, the long-range ferromagnetic order is always absent in pristine graphene. Here we report the fabrication and transport properties of graphene-BiFeO3 heterostructures. It is found that the magnetic proximity effect results in a strong Zeeman splitting in graphene with the exchange field up to hundreds of tesla. The ν=0 quantum Hall state of graphene is further transformed into a ferromagnetic state or a canted antiferromagnetic state in the presence of a perpendicular magnetic field. Our findings in graphene/BiFeO3 heterostructure are therefore promising for future spintronics.

Original language	English
Article number	195426
Journal	Physical Review B
Volume	95
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevB.95.195426
Publication status	Published - 30 May 2017

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title = "Magnetic proximity effect in graphene coupled to a BiFe O3 nanoplate",

abstract = "Graphene, a very intriguing two-dimensional Dirac electronic system with high carrier mobility, is promising for spintronics. However, the long-range ferromagnetic order is always absent in pristine graphene. Here we report the fabrication and transport properties of graphene-BiFeO3 heterostructures. It is found that the magnetic proximity effect results in a strong Zeeman splitting in graphene with the exchange field up to hundreds of tesla. The ν=0 quantum Hall state of graphene is further transformed into a ferromagnetic state or a canted antiferromagnetic state in the presence of a perpendicular magnetic field. Our findings in graphene/BiFeO3 heterostructure are therefore promising for future spintronics.",

author = "Wu, {Yan Fei} and Song, {Hua Ding} and Liang Zhang and Xin Yang and Zhaohui Ren and Dameng Liu and Wu, {Han Chun} and Jansheng Wu and Li, {Jin Guang} and Zhenzhao Jia and Baoming Yan and Xiaosong Wu and Duan, {Chun Gang} and Gaorong Han and Liao, {Zhi Min} and Dapeng Yu",

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T1 - Magnetic proximity effect in graphene coupled to a BiFe O3 nanoplate

AU - Wu, Yan Fei

AU - Song, Hua Ding

AU - Zhang, Liang

AU - Yang, Xin

AU - Ren, Zhaohui

AU - Liu, Dameng

AU - Wu, Han Chun

AU - Wu, Jansheng

AU - Li, Jin Guang

AU - Jia, Zhenzhao

AU - Yan, Baoming

AU - Wu, Xiaosong

AU - Duan, Chun Gang

AU - Han, Gaorong

AU - Liao, Zhi Min

AU - Yu, Dapeng

PY - 2017/5/30

Y1 - 2017/5/30

N2 - Graphene, a very intriguing two-dimensional Dirac electronic system with high carrier mobility, is promising for spintronics. However, the long-range ferromagnetic order is always absent in pristine graphene. Here we report the fabrication and transport properties of graphene-BiFeO3 heterostructures. It is found that the magnetic proximity effect results in a strong Zeeman splitting in graphene with the exchange field up to hundreds of tesla. The ν=0 quantum Hall state of graphene is further transformed into a ferromagnetic state or a canted antiferromagnetic state in the presence of a perpendicular magnetic field. Our findings in graphene/BiFeO3 heterostructure are therefore promising for future spintronics.

AB - Graphene, a very intriguing two-dimensional Dirac electronic system with high carrier mobility, is promising for spintronics. However, the long-range ferromagnetic order is always absent in pristine graphene. Here we report the fabrication and transport properties of graphene-BiFeO3 heterostructures. It is found that the magnetic proximity effect results in a strong Zeeman splitting in graphene with the exchange field up to hundreds of tesla. The ν=0 quantum Hall state of graphene is further transformed into a ferromagnetic state or a canted antiferromagnetic state in the presence of a perpendicular magnetic field. Our findings in graphene/BiFeO3 heterostructure are therefore promising for future spintronics.

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Magnetic proximity effect in graphene coupled to a BiFe O3 nanoplate

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