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Dependence of the adsorption height of graphenelike adsorbates on their dimensionality

DOI: 10.1103/PhysRevB.98.075410 DOI Help

Authors: S. Weiß (Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich; Jülich Aachen Research Alliance (JARA)) , D. Gerbert (Ruprecht-Karls-Universität Heidelberg) , A. Stein (Ruprecht-Karls-Universität Heidelberg) , A. K. Schenk (La Trobe University) , X. Yang (Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich; Jülich Aachen Research Alliance (JARA)) , C. Brülke (Institut für Physikalische und Theoretische Chemie der Universität Bonn) , R. Kremring (Institut für Physikalische und Theoretische Chemie der Universität Bonn) , S. Feldmann (Ruprecht-Karls-Universität Heidelberg) , F. C. Bocquet (Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich; Jülich Aachen Research Alliance (JARA)) , M. Gille (Humboldt-Universität zu Berlin) , S. Hecht (Humboldt-Universität zu Berlin) , M. Sokolowski (Institut für Physikalische und Theoretische Chemie der Universität Bonn) , P. Tegeder (Ruprecht-Karls-Universität Heidelberg) , S. Soubatch (Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich; Jülich Aachen Research Alliance (JARA)) , F. S. Tautz (Peter Grünberg Institut (PGI-3), Forschungszentrum Jülich; Jülich Aachen Research Alliance (JARA))
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review B , VOL 98

State: Published (Approved)
Published: August 2018
Diamond Proposal Number(s): 12627 , 16056

Abstract: Comparing the adsorption heights of various graphene nanoribbons on Cu(111) and Au(111) surfaces to those of graphene and π-conjugated planar organic molecules, we observe that two-dimensional graphene adsorbs much further away from the surface than both one-dimensional graphene nanoribbons and π-conjugated planar molecules—which represent zero-dimensional graphene flakes. We show that this is a direct consequence of the adsorbates' dimensionality. Our results provide invaluable insights into the interplay of Pauli repulsion, pushback effect, and chemical interaction for graphenelike adsorbates of any dimensionality on metal surfaces.

Journal Keywords: Chemical bonding; Surface adsorption; 1-dimensional systems; Graphene; Nanoribbon; Photoelectron techniques; X-ray photoelectron spectroscopy; X-ray standing waves

Subject Areas: Materials, Physics


Instruments: I09-Surface and Interface Structural Analysis