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Bibliographic record number: 793085

Journal

Authors: Pervan, Petar; Lazić, Predrag; Petrović, Marin; Šrut Rakić, Iva; Pletikosić, Ivo; Kralj, Marko; Milun, Milorad; Valla, Tonica
Title: Li adsorption versus graphene intercalation on Ir(111): From quenching to restoration of the Ir surface state
( Li adsorption versus graphene intercalation on Ir(111): From quenching to restoration of the Ir surface state )
Source: Physical review. B, Condensed matter and materials physics (1098-0121) 92 (2015), 24;
Paper type: article
Keywords: graphene ; intercalation ; Li ; photoemission
( graphene ; intercalation ; Li ; photoemission )
Abstract:
It is common knowledge that even a trace amount of a chemisorbed species can strongly perturb the surface electronic structure, in particular the surface states, to the point of their complete eradication.We have confirmed this behavior by adsorbing Li on the Ir(111), but surprisingly, we have discovered that in the presence of graphene Li does not suppress the Ir surface state. By combining the results of the low-energy electron diffraction and angle-resolved photoemission spectroscopywith the density functional theory for modeling of the studied systems we can provide a detailed explanation for the observed phenomena. The quenching of the surface state by the electronic states of disordered Li layer on a bare Ir surface is efficiently deactivated by the presence of graphene which shifts the Li states to lower energies thereby leading to the unexpected reappearance of the surface state. Such protection of the surface state coherence from disorder upon intercalation could be used as a benchmark in the toolbox of surface science.
Project / theme: HRZZ-IP-2013-11-2727
Original language: eng
Citation databases: Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Category: Znanstveni
Research fields:
Physics
URL: http://dx.doi.org/10.1103/PhysRevB.92.245415
http://journals.aps.org/prb/pdf/10.1103/PhysRevB.92.245415
Broj citata:
Altmetric:
DOI: 10.1103/PhysRevB.92.245415
URL cjelovitog rada:
Google Scholar: Li adsorption versus graphene intercalation on Ir(111): From quenching to restoration of the Ir surface state
Contrib. to CROSBI by: Petar Pervan (pervan@ifs.hr), 8. Sij. 2016. u 16:22 sati



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