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	Half metallicity along the edge of zigzag boron nitride nanoribbons
	Fawei Zheng ; Gang Zhou ; Zhirong Liu ; Jian Wu ; Wenhui Duan ; Bing-Lin Gu ; Zhang, S.B.
	2010-10-12 ; 2010-10-12
关键词	Theoretical or Mathematical/ ab initio calculations boron compounds density functional theory Fermi level ferromagnetic materials III-V semiconductors magnetic moments magnetoelectronics nanostructured materials passivation semimagnetic semiconductors spin polarised transport wide band gap semiconductors/ half metallicity zigzag boron nitride nanoribbons first-principles calculation local spin density approximation ZBNNR sp-electron system giant spin splitting Fermi level spin polarized system metallic single-spin states Dirac point carrier velocity spintronics passivation ferromagnetic materials magnetic moments BN/ A7115M Density functional theory, local density approximation (condensed matter electronic structure) A7225 Spin polarized transport A7320D Electron states in low-dimensional structures A7125T Electronic structure of crystalline semiconductor compounds and insulators A8160C Surface treatment and degradation in semiconductor technology A7550P Magnetic semiconductors A7550D Ferromagnetism of nonmetals A7530C Magnetic moments and susceptibility in magnetically ordered materials A7550K Amorphous and nanostructured magnetic materials A7115A Ab initio calculations (condensed matter electronic structure)/ BN/bin B/bin N/bin
中文摘要	First-principles calculations within the local spin-density approximation reveal half metallicity in zigzag boron nitride nanoribbons (ZBNNRs). When the B edge, but not the N edge, of the ZBNNR is passivated, despite being a pure sp-electron system, the ribbon shows a giant spin splitting. The electrons at the Fermi level are 100% spin polarized with a half-metal gap of 0.38 eV and its conductivity is dominated by metallic single-spin states. The two states crossing at the Dirac point have different molecular origins, which signal a switch of carrier velocity. The ZBNNR should be a good potential candidate for wide gap spintronics.
语种	英语
出版者	American Physical Society by AIP ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81683]
专题	清华大学
推荐引用方式 GB/T 7714	Fawei Zheng,Gang Zhou,Zhirong Liu,et al. Half metallicity along the edge of zigzag boron nitride nanoribbons[J],2010, 2010.
APA	Fawei Zheng.,Gang Zhou.,Zhirong Liu.,Jian Wu.,Wenhui Duan.,...&Zhang, S.B..(2010).Half metallicity along the edge of zigzag boron nitride nanoribbons..
MLA	Fawei Zheng,et al."Half metallicity along the edge of zigzag boron nitride nanoribbons".(2010).

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