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Issue 12, 2020
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A high performance N-doped graphene nanoribbon based spintronic device applicable with a wide range of adatoms

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Abstract

Designing and fabricating nanosize spintronic devices is a crucial task to develop information technology of the future. However, most of the introduced spin filters suffer from several limitations including difficulty in manipulating the spin current, incapability in utilizing a wide range of dopants to provide magnetism, or obstacles in their experimental realization. Here, by employing first principles calculations, we introduce a structurally simple and functionally efficient spin filter device composed of a zigzag graphene nanoribbon (ZGNR) with an embedded nitrogenated divacancy. We show that the proposed system, possessing a robust ferromagnetic (FM) ordering, exhibits perfect half metallic behavior in the absence of frequently used transition metals (TMs). Our calculations also show that the suggested system is compatible with a wide range of adatoms including basic metals, metalloids, and TMs. It means that besides d electron magnetism originating from TMs, p electrons of incorporated elements of the main group can also cause half metallicity in the electronic structure of the introduced system. Our system exploiting the robustness of doping-induced FM ordering would be beneficial for promising multifunctional spin filter devices.

Graphical abstract: A high performance N-doped graphene nanoribbon based spintronic device applicable with a wide range of adatoms

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Supplementary files

Article information


Submitted
05 Aug 2020
Accepted
09 Nov 2020
First published
09 Nov 2020

This article is Open Access

Nanoscale Adv., 2020,2, 5905-5911
Article type
Paper

A high performance N-doped graphene nanoribbon based spintronic device applicable with a wide range of adatoms

M. R. Rezapour, G. Lee and K. S. Kim, Nanoscale Adv., 2020, 2, 5905
DOI: 10.1039/D0NA00652A

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