Exchange interaction of magnetic impurities in graphene

被引：131

作者：

Dugaev, V. K.

Litvinov, V. I.

Barnas, J.

机构：

[1] Univ Technol, Dept Math & Appl Phys, PL-35959 Rzeszow, Poland

[2] Inst Super Tecn, Dept Fis, P-1049001 Lisbon, Portugal

[3] Inst Super Tecn, CFIF, P-1049001 Lisbon, Portugal

[4] Natl Acad Sci Ukraine, Frantsevich Inst Problems Mat Sci, UA-58001 Chernovtsy, Ukraine

[5] WaveBand Sierra Nevada Corp, Irvine, CA 92618 USA

[6] Adam Mickiewicz Univ, Dept Phys, PL-61614 Poznan, Poland

[7] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.74.224438

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The indirect exchange interaction between magnetic impurities localized in a graphene plane is considered theoretically, with the influence of intrinsic spin-orbit interaction taken into account. Such an interaction gives rise to an energy gap at the Fermi level, which makes the usual RKKY model not applicable. The results show that the effective indirect exchange interaction is described by a range function which decays exponentially with the distance between magnetic moments. The interaction is also shown to depend on whether the two localized moments belong to the same sublattice or are located in two different sublattices.

引用

页数：5

共 29 条

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