Enhancement of spin accumulation in few-layer graphene lateral spin valve

Wenyu Liu; Zuoquan Tan; Gehui Zhang; Meijie Zhu; Hua Xu; Le Wang

Results in Physics (Jun 2022)

Enhancement of spin accumulation in few-layer graphene lateral spin valve

Wenyu Liu,
Zuoquan Tan,
Gehui Zhang,
Meijie Zhu,
Hua Xu,
Le Wang

Affiliations

Wenyu Liu: Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Natural Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, People’s Republic of China
Zuoquan Tan: Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Natural Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, People’s Republic of China
Gehui Zhang: Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Natural Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, People’s Republic of China
Meijie Zhu: Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Natural Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, People’s Republic of China
Hua Xu: Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Natural Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, People’s Republic of China
Le Wang: Corresponding author.; Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Natural Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, People’s Republic of China

Journal volume & issue: Vol. 37
p. 105531

Abstract

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Spin injection, spin accumulation and spin detection have been investigated in few-layer graphene lateral spin valves at room temperature. Compared to the zero value of spin accumulation signal in Co/Graphene/Co lateral spin valve even after thermal treatment, clear spin accumulation signals were observed in Co/MgO/Graphene/MgO/Co lateral spin valve after 270 °C thermal annealing. Our finding provides a robust way to achieve the spin injection in graphene lateral spin valves.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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