Asymmetric magneto-transport in a Dirac semimetal heterostructure

Hua Ding Song; Ling Jian Kong; Yan Fei Wu; Liang Zhang; Cai Zhen Li; Zhi Min Liao; Da Peng Yu

doi:10.1063/1.5097295

Asymmetric magneto-transport in a Dirac semimetal heterostructure

Hua Ding Song, Ling Jian Kong, Yan Fei Wu, Liang Zhang, Cai Zhen Li, Zhi Min Liao^*, Da Peng Yu

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

A three-dimensional (3D) Dirac semimetal is known as a 3D analog of graphene; its Fermi-arc-like surface states are attractive for spintronic applications and can potentially modulate graphene via interface engineering. Here, we report the asymmetric magnetotransport in graphene/Cd₃As₂ heterostructure devices. The electron transfer occurring at the graphene/Cd₃As₂ interface results in a strong n-type doping of graphene. The interfacial coupling between graphene and Cd₃As₂ also enables us to selectively pin the chemical potential of graphene. The asymmetrical magnetotransport near the zero Landau level in graphene suggests that the interfacial coupling between Cd₃As₂ and graphene can be modulated by the magnetic field.

Original language	English
Article number	243107
Journal	Applied Physics Letters
Volume	114
Issue number	24
DOIs	https://doi.org/10.1063/1.5097295
Publication status	Published - 17 Jun 2019
Externally published	Yes

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abstract = "A three-dimensional (3D) Dirac semimetal is known as a 3D analog of graphene; its Fermi-arc-like surface states are attractive for spintronic applications and can potentially modulate graphene via interface engineering. Here, we report the asymmetric magnetotransport in graphene/Cd3As2 heterostructure devices. The electron transfer occurring at the graphene/Cd3As2 interface results in a strong n-type doping of graphene. The interfacial coupling between graphene and Cd3As2 also enables us to selectively pin the chemical potential of graphene. The asymmetrical magnetotransport near the zero Landau level in graphene suggests that the interfacial coupling between Cd3As2 and graphene can be modulated by the magnetic field.",

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AU - Song, Hua Ding

AU - Kong, Ling Jian

AU - Wu, Yan Fei

AU - Zhang, Liang

AU - Li, Cai Zhen

AU - Liao, Zhi Min

AU - Yu, Da Peng

PY - 2019/6/17

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N2 - A three-dimensional (3D) Dirac semimetal is known as a 3D analog of graphene; its Fermi-arc-like surface states are attractive for spintronic applications and can potentially modulate graphene via interface engineering. Here, we report the asymmetric magnetotransport in graphene/Cd3As2 heterostructure devices. The electron transfer occurring at the graphene/Cd3As2 interface results in a strong n-type doping of graphene. The interfacial coupling between graphene and Cd3As2 also enables us to selectively pin the chemical potential of graphene. The asymmetrical magnetotransport near the zero Landau level in graphene suggests that the interfacial coupling between Cd3As2 and graphene can be modulated by the magnetic field.

AB - A three-dimensional (3D) Dirac semimetal is known as a 3D analog of graphene; its Fermi-arc-like surface states are attractive for spintronic applications and can potentially modulate graphene via interface engineering. Here, we report the asymmetric magnetotransport in graphene/Cd3As2 heterostructure devices. The electron transfer occurring at the graphene/Cd3As2 interface results in a strong n-type doping of graphene. The interfacial coupling between graphene and Cd3As2 also enables us to selectively pin the chemical potential of graphene. The asymmetrical magnetotransport near the zero Landau level in graphene suggests that the interfacial coupling between Cd3As2 and graphene can be modulated by the magnetic field.

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

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ER -

Asymmetric magneto-transport in a Dirac semimetal heterostructure

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