Orbital selective coupling between Ni adatoms and graphene Dirac electrons

被引：24

作者：

Gyamfi, M. ^{[1
]}

Eelbo, T. ^{[1
]}

Wasniowska, M. ^{[1
]}

Wehling, T. O. ^{[2
]}

Forti, S. ^{[3
]}

Starke, U. ^{[3
]}

Lichtenstein, A. I. ^{[2
]}

Katsnelson, M. I. ^{[4
]}

Wiesendanger, R. ^{[1
]}

机构：

[1] Univ Hamburg, Inst Appl Phys, D-20355 Hamburg, Germany

[2] Univ Hamburg, Inst Theoret Phys 1, D-20355 Hamburg, Germany

[3] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

[4] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 AJ Nijmegen, Netherlands

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 16期

关键词：

ULTRASOFT PSEUDOPOTENTIALS; ATOM;

D O I：

10.1103/PhysRevB.85.161406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the coupling of Ni monomers and trimers to graphene by means of atomically resolved scanning tunneling microscopy (STM). The precise adsorption site of the adatoms is determined experimentally. STM images reveal characteristic nodal structures above the Ni adatoms and trimers on graphene. First-principles calculations combined with symmetry considerations explain our experimental results by an orbitally controlled interaction of the adatoms and clusters with the Dirac electrons in graphene.

引用

页数：5

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