Electron Transport in Zigzag Graphene Nanoribbons with a Tetra-Vacancy Complex: A Perfect Spin Filter

Author:

Lu Wei1,Ke San Huang1

Affiliation:

1. Tongji University

Abstract

A novel doping scheme for graphene was recently realized experimentally by creating different vacancy complexes doped with a transition metal (TM) atom [nanoLett. 12, 141 (2012)]. This provides a new reliable way to modifying the electronic structure and transport property of graphene. Here, we show, by performing first-principles calculations, that the defect complex of TM@V4(a TM atom doped tetra-vacancy) in zigzag graphene nanoribbons (ZGNRs) can lead to a 100% spin-polarized electron transport in a wide energy range around the Fermi energy. Analyses show that this is due to the particular atomic structure of the TM@V4complex regardless of the species of the TM atom.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Divacancy in graphene nano-ribbons;Physica E: Low-dimensional Systems and Nanostructures;2019-02

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