Spin transport in multilayer graphene away from the charge neutrality point

Xin He; Yan Wen; Chenhui Zhang; Peng Li; Dongxing Zheng; Aitian Chen; Aurelien Manchon; Xixiang Zhang

doi:10.1016/j.carbon.2020.10.050

Spin transport in multilayer graphene away from the charge neutrality point

Xin He, Yan Wen, Chenhui Zhang, Peng Li, Dongxing Zheng, Aitian Chen, Aurelien Manchon, Xixiang Zhang

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Abstract

Graphene is considered as a promising material in spintronics due to its long spin relaxation time and long spin relaxation length. However, its spin transport properties have been studied at low carrier density only, beyond which much is still unknown. In this study, we explore the spin transport and spin precession properties in multilayer graphene at high carrier density using ionic liquid gating. We find that the spin relaxation time is directly proportional to the momentum relaxation time, indicating that the Elliott-Yafet mechanism still dominates the spin relaxation in multilayer graphene away from the charge neutrality point.

Original language	English (US)
Journal	Carbon
DOIs	https://doi.org/10.1016/j.carbon.2020.10.050
State	Published - Oct 17 2020

Bibliographical note

KAUST Repository Item: Exported on 2020-10-21
Acknowledged KAUST grant number(s): OSR-2017-CRG6-3427, OSR-2018-CRG7-3717
Acknowledgements: This publication is based on research supported by the King Abdullah University of Science and Technology (KAUST), under Award Nos. OSR-2018-CRG7-3717 and OSR-2017-CRG6-3427.

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10.1016/j.carbon.2020.10.050

https://repository.kaust.edu.sa/bitstream/10754/665633/1/Manuscript%25201006.pdf

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title = "Spin transport in multilayer graphene away from the charge neutrality point",

abstract = "Graphene is considered as a promising material in spintronics due to its long spin relaxation time and long spin relaxation length. However, its spin transport properties have been studied at low carrier density only, beyond which much is still unknown. In this study, we explore the spin transport and spin precession properties in multilayer graphene at high carrier density using ionic liquid gating. We find that the spin relaxation time is directly proportional to the momentum relaxation time, indicating that the Elliott-Yafet mechanism still dominates the spin relaxation in multilayer graphene away from the charge neutrality point.",

author = "Xin He and Yan Wen and Chenhui Zhang and Peng Li and Dongxing Zheng and Aitian Chen and Aurelien Manchon and Xixiang Zhang",

note = "KAUST Repository Item: Exported on 2020-10-21 Acknowledged KAUST grant number(s): OSR-2017-CRG6-3427, OSR-2018-CRG7-3717 Acknowledgements: This publication is based on research supported by the King Abdullah University of Science and Technology (KAUST), under Award Nos. OSR-2018-CRG7-3717 and OSR-2017-CRG6-3427.",

year = "2020",

month = oct,

day = "17",

doi = "10.1016/j.carbon.2020.10.050",

language = "English (US)",

journal = "Carbon",

issn = "0008-6223",

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TY - JOUR

T1 - Spin transport in multilayer graphene away from the charge neutrality point

AU - He, Xin

AU - Wen, Yan

AU - Zhang, Chenhui

AU - Li, Peng

AU - Zheng, Dongxing

AU - Chen, Aitian

AU - Manchon, Aurelien

AU - Zhang, Xixiang

N1 - KAUST Repository Item: Exported on 2020-10-21 Acknowledged KAUST grant number(s): OSR-2017-CRG6-3427, OSR-2018-CRG7-3717 Acknowledgements: This publication is based on research supported by the King Abdullah University of Science and Technology (KAUST), under Award Nos. OSR-2018-CRG7-3717 and OSR-2017-CRG6-3427.

PY - 2020/10/17

Y1 - 2020/10/17

N2 - Graphene is considered as a promising material in spintronics due to its long spin relaxation time and long spin relaxation length. However, its spin transport properties have been studied at low carrier density only, beyond which much is still unknown. In this study, we explore the spin transport and spin precession properties in multilayer graphene at high carrier density using ionic liquid gating. We find that the spin relaxation time is directly proportional to the momentum relaxation time, indicating that the Elliott-Yafet mechanism still dominates the spin relaxation in multilayer graphene away from the charge neutrality point.

AB - Graphene is considered as a promising material in spintronics due to its long spin relaxation time and long spin relaxation length. However, its spin transport properties have been studied at low carrier density only, beyond which much is still unknown. In this study, we explore the spin transport and spin precession properties in multilayer graphene at high carrier density using ionic liquid gating. We find that the spin relaxation time is directly proportional to the momentum relaxation time, indicating that the Elliott-Yafet mechanism still dominates the spin relaxation in multilayer graphene away from the charge neutrality point.

UR - http://hdl.handle.net/10754/665633

UR - https://linkinghub.elsevier.com/retrieve/pii/S0008622320310149

U2 - 10.1016/j.carbon.2020.10.050

DO - 10.1016/j.carbon.2020.10.050

M3 - Article

SN - 0008-6223

JO - Carbon

JF - Carbon

ER -

Spin transport in multilayer graphene away from the charge neutrality point

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