Perfect spin filtering effect and negative differential behavior in phosphorus-doped zigzag graphene nanoribbons View Full Text


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Article Info

DATE

2015-10-30

AUTHORS

Fei Zou, Lin Zhu, Kailun Yao

ABSTRACT

On the basis of the density functional theory combined with the Keldysh nonequilibrium Green’s function method, we investigate the spin-dependent transport properties of single-edge phosphorus-doped ZGNR systems with different widths. The results show a perfect spin filtering effect reaching 100% at a wide bias range in both parallel (P) and antiparallel (AP) spin configurations for all systems, especially for 6-ZGNR-P system. Instructively, for the AP spin configuration, the spin down current of the 4-ZGNR-P system exhibits a negative differential effect. By analyzing the transmission spectrum and the spin-resolved band structures of the electrodes, we elucidate the mechanism for these peculiar properties. Our findings provide a new way to produce multifunctional spintronic devices based on phosphorus-doped zigzag graphene nanoribbons. More... »

PAGES

15966

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/srep15966

DOI

http://dx.doi.org/10.1038/srep15966

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1013277044

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/26514646


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