Modulating magnetism of nitrogen- doped zigzag graphene nanoribbons

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	Modulating magnetism of nitrogen- doped zigzag graphene nanoribbons
	Zhao, SQ ; Lu, Y ; Lu, WG ; Liang, WJ ; Wang, EG
刊名	CHINESE PHYSICS B
	2014
卷号	23 期号:6
关键词	graphene nanoribbons charge doping spin-polarization spatial localization
ISSN号	1674-1056
通讯作者	Lu, WG (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	We present a study of electronic properties of zigzag graphene nanoribbons (ZGNRs) substitutionally doped with nitrogen atoms at a single edge by first principle calculations. We find that the two edge states near the Fermi level separate due to the asymmetric nitrogen-doping. The ground states of these systems become ferromagnetic because the local magnetic moments along the undoped edges remain and those along the doped edges are suppressed. By controlling the charge-doping level, the magnetic moments of the whole ribbons are modulated. Proper charge doping leads to interesting half-metallic and single-edge conducting ribbons which would be helpful for designing graphene-nanoribbon-based spintronic devices in the future.
资助信息	National Natural Science Foundation of China [10834012, 11374342]; National Key Basic Research and Development Program of China [2009CB930700]; Knowledge Innovation Foundation of the Chinese Academy of Sciences [KJCX2-YW-W35]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/58998]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhao, SQ,Lu, Y,Lu, WG,et al. Modulating magnetism of nitrogen- doped zigzag graphene nanoribbons[J]. CHINESE PHYSICS B,2014,23(6).
APA	Zhao, SQ,Lu, Y,Lu, WG,Liang, WJ,&Wang, EG.(2014).Modulating magnetism of nitrogen- doped zigzag graphene nanoribbons.CHINESE PHYSICS B,23(6).
MLA	Zhao, SQ,et al."Modulating magnetism of nitrogen- doped zigzag graphene nanoribbons".CHINESE PHYSICS B 23.6(2014).