Migration and Localization of Metal Atoms on Strained Graphene

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© 2010 American Physical Society (APS). This is the accepted version of the following article: Cretu, Ovidiu & Krasheninnikov, Arkady V. & Rodríguez-Manzo, Julio A. & Sun, Litao & Nieminen, Risto M. & Banhart, Florian. 2010. Migration and Localization of Metal Atoms on Strained Graphene. Physical Review Letters. Volume 105, Issue 19. 196102/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.105.196102, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.105.196102.

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Journal Title

Journal ISSN

Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2010

Major/Subject

Mcode

Degree programme

Language

en

Pages

196102/1-4

Series

Physical Review Letters, Volume 105, Issue 19

Abstract

Reconstructed point defects in graphene are created by electron irradiation and annealing. By applying electron microscopy and density functional theory, it is shown that the strain field around these defects reaches far into the unperturbed hexagonal network and that metal atoms have a high affinity to the nonperfect and strained regions of graphene. Metal atoms are attracted by reconstructed defects and bonded with energies of about 2 eV. The increased reactivity of the distorted π-electron system in strained graphene allows us to attach metal atoms and to tailor the properties of graphene.

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Keywords

graphene, transition metal atoms

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Citation

Cretu, Ovidiu & Krasheninnikov, Arkady V. & Rodríguez-Manzo, Julio A. & Sun, Litao & Nieminen, Risto M. & Banhart, Florian. 2010. Migration and Localization of Metal Atoms on Strained Graphene. Physical Review Letters. Volume 105, Issue 19. 196102/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.105.196102.