Magnetic properties and diffusion of adatoms on a graphene sheet

被引：417

作者：

Lehtinen, PO

Foster, AS

Ayuela, A

Krasheninnikov, A

Nordlund, K

Nieminen, RM

机构：

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

[2] Univ Helsinki, Accelerator Lab, FIN-00014 Helsinki, Finland

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.91.017202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use ab initio methods to calculate the properties of adatom defects on a graphite surface. By applying a full spin-polarized description to the system we demonstrate that these defects have a magnetic moment of about 0.5mu(B) and also calculate its role in diffusion over the surface. The magnetic nature of these intrinsic carbon defects suggests that it is important to understand their role in the recently observed magnetism in pure carbon systems.

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页数：4

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