Induced magnetism of carbon atoms at the graphene/Ni(111) interface

被引：171

作者：

Weser, M. ^{[1
]}

Rehder, Y. ^{[1
]}

Horn, K. ^{[1
]}

Sicot, M. ^{[2
]}

Fonin, M. ^{[2
]}

Preobrajenski, A. B. ^{[3
]}

Voloshina, E. N. ^{[4
]}

Goering, E. ^{[5
]}

Dedkov, Yu. S. ^{[1
]}

机构：

[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

[2] Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany

[3] Lund Univ, Max Lab, S-22100 Lund, Sweden

[4] Free Univ Berlin, Inst Chem & Biochem Phys & Theoret Chem, D-14195 Berlin, Germany

[5] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 01期

关键词：

electronic structure; graphene; interface structure; magnetic circular dichroism; magnetic moments; nickel; valence bands; X-ray absorption spectra; RAY CIRCULAR-DICHROISM; ABSORPTION; GRAPHITE; NI; FILMS;

D O I：

10.1063/1.3280047

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report an element-specific investigation of electronic and magnetic properties of the graphene/Ni(111) system. Using x-ray magnetic circular dichroism, the occurrence of an induced magnetism of the carbon atoms in the graphene layer is observed. We attribute this magnetic moment to the strong hybridization between C pi and Ni 3d valence band states. The net magnetic moment of carbon in the graphene layer is estimated to be in the range of 0.05-0.1 mu(B) per atom.

引用

页数：3

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