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001     12569
005     20211110141629.0
024 7 _ |a 10.1088/1367-2630/12/11/113016
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024 7 _ |a WOS:000284773400003
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024 7 _ |a 2128/28971
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037 _ _ |a PreJuSER-12569
041 _ _ |a eng
082 _ _ |a 530
084 _ _ |2 WoS
|a Physics, Multidisciplinary
100 1 _ |0 P:(DE-HGF)0
|a Brako, R.
|b 0
245 _ _ |a Graphene on the Ir(111) surface: from van der Waals to strong bonding
260 _ _ |a [Bad Honnef]
|b Dt. Physikalische Ges.
|c 2010
300 _ _ |a 113016
336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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336 7 _ |a JOURNAL_ARTICLE
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336 7 _ |a article
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440 _ 0 |0 8201
|a New Journal of Physics
|v 12
|x 1367-2630
|y 11
500 _ _ |a This work was supported by the Ministry of Science, Education and Sports of the Republic of Croatia, under contract no. 098-0352828-2863. P Lazic acknowledges financial support from the Alexander von Humboldt Foundation. The calculations were performed on JUROPA and JUGENE supercomputers at the Julich Supercomputing Centre, Forschungszentrum Julich, Germany.
520 _ _ |a We calculated the properties of a graphene monolayer on the Ir(111) surface, using the model in which the periodicities of the two structures are assumed equal, instead of the observed slight mismatch which leads to a large superperiodic unit cell. We used the density functional theory approach supplemented with the recently developed van der Waals-density function (vdW-DF) non-local correlation functional. The latter is essential for treating the vdW interaction, which is crucial for the adsorption distances and energies of the rather weakly bound graphene. When additional iridium atoms are put on top of graphene, the electronic structure of C atoms acquires the sp(3) character and strong bonds with the iridium atoms are formed. We discuss the validity of the approximations used and their relevance to other graphene-metal systems.
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|a Lazic, P.
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700 1 _ |0 P:(DE-Juel1)130513
|a Atodiresei, N.
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773 _ _ |0 PERI:(DE-600)1464444-7
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|y 2010
856 7 _ |u http://dx.doi.org/10.1088/1367-2630/12/11/113016
856 4 _ |u https://juser.fz-juelich.de/record/12569/files/Brako_2010_New_J._Phys._12_113016.pdf
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