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HomeKey Engineering MaterialsKey Engineering Materials Vol. 727Spin Filter and Negative Differential Resistance...

Spin Filter and Negative Differential Resistance in Carbon-Based Device with Defects

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Abstract:

In this work, we report the electronic transport properties of an atomic carbon chain sandwiched between two ferromagnetic zigzag graphene nanoribbon electrodes with symmetrical nitrogen-vacancy defects using the density functional theory combining with the non-equilibrium Green’s function method. Our results show that a perfect spin filter is observed with almost 100% spin polarization. Moreover, we also see the negative differential resistance effect from the spin-up current under a low positive voltage bias. These results may promise potential applications in spintronic devices with multi-function in the future.

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Functional Materials Research II

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Periodical:

Key Engineering Materials (Volume 727)

Pages:

427-431

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.727.427

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Online since:

January 2017

Authors:

Zhao Hui Gong, Tong Sheng Xia*, Ya Xin Wang

Keywords:

Atomic Carbon Chain, Negative Differential Resistance, Nitrogen-Vacancy Defects, Spin Filter, Zigzag Geographer Ribbon

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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