Hydrogen-induced magnetism in carbon nanotubes

被引：56

作者：

Ma, YC ^{[1
]}

Lehtinen, PO ^{[1
]}

Foster, AS ^{[1
]}

Nieminen, RM ^{[1
]}

机构：

[1] Aalto Univ, Phys Lab, Helsinki 02015, Finland

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.72.085451

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spin-polarized density functional theory is used to investigate hydrogen-induced magnetism in single-walled carbon nanotubes (SWNTs). Hydrogen trapped at a carbon vacancy can trigger delocalized pi electron spin polarization on semiconducting zigzag SWNTs. Hydrogen pinned by a carbon adatom on the surface of the SWNT can induce spin polarization localized at the carbon adatom, independent of the diameter and chirality of the tube.

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页数：6

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