Two Gd Atoms Adsorbed on Zigzag Graphene Nanoribbon:A First-Principles Study

doi:10.16182/j.issn1004731x.joss.20-FZ0468E

Abstract

Abstract: A giant Rashba-type spin splitting is highly critical for the application of spintronics, but one-dimensional magnetic systems are rarely involved. In order to explore the characteristics and strength of Rashba effect in one-dimensional magnetic systems, two Gd atoms adsorbed on Zigzag graphene nanoribbon system is proposed. The characteristics and strength of the Rashba effect in different magnetization directions and the magnetic anisotropy of the system are analyzed through the first-principles calculations. The results show that the antiferromagnetic ground state system has strong Rashba strength and out-of-plane magnetic anisotropy. In addition, the Rashba effect in magnetic system needs to consider the spin magnetic moment of magnetic atoms. This work would be of great significance to the design of one-dimensional magnetic Rashba system.

Key words: Gd atoms, graphene nanoribbon, antiferromagnetic, Rashba effect

CLC Number:

TP391.9

Xie Weifeng, Zuo Xu. Two Gd Atoms Adsorbed on Zigzag Graphene Nanoribbon:A First-Principles Study[J]. Journal of System Simulation, 2020, 32(11): 2208-2217.

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