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Journal of Nanoparticle Research

Erschienen in:

01.05.2013 | Research Paper

Manipulation of half-metallicity and ferromagnetism in N-doped CdS nanowire

verfasst von: Fu-bao Zheng, Chang-wen Zhang, Shi-shen Yan, Feng Li

Erschienen in: Journal of Nanoparticle Research | Ausgabe 5/2013

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Abstract

The spin-polarization and magnetic coupling of N-doped CdS nanowires (NWs) with a diameter size of 12.33 Ǻ have been investigated through first-principles calculations. The doped N prefers surface S sites and leads to a half-metallic property. The magnetic interaction between the nearest and the next-nearest N dopants results in a strong ferromagnetic (FM) coupling, while, when the distance between N dopants is larger than 8.0 Ǻ, the ground state of the system tends to be paramagnetic. Also, a nitrogen concentration threshold to produce the FM order is estimated to be 8.3 %. The results of incorporation of N dopants to CdS NWs pave a promising way to realize potential applications in spintronics.

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Titel: Manipulation of half-metallicity and ferromagnetism in N-doped CdS nanowire
verfasst von: Fu-bao Zheng
Chang-wen Zhang
Shi-shen Yan
Feng Li
Publikationsdatum: 01.05.2013
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 5/2013
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-013-1647-9

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