Role of preferential weak hybridization between the surface-state of a metal and the oxygen atom in the chemical adsorption mechanism

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Title
Role of preferential weak hybridization between the surface-state of a metal and the oxygen atom in the chemical adsorption mechanism
Author(s)
Yong Su Kim; Sang Ho Jeon; Bostwick, Aaron; Rotenberg, Eli; Ross, Philip N.; Walter, Andrew L.; Young Jun Chang; Stamenkovic, Vojislav R.; Markovic, Nenad M.; Tae Won Noh; Seungwu Han; Bongjin Simon Mun
Publication Date
2013-09
Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.43, no.15, pp.19019 - 19023
Publisher
ROYAL SOC CHEMISTRY
Abstract
We report on the chemical adsorption mechanism of atomic oxygen on the Pt(111) surface using angle-resolved-photoemission spectroscopy (ARPES) and density functional calculations. The detailed band structure of Pt(111) from ARPES reveals that most of the bands near the Fermi level are surface-states. By comparing band maps of Pt and O/Pt, we identify that d(xz) (d(yz)) and d(z)2 orbitals are strongly correlated in the surface-states around the symmetry point M and K, respectively. Additionally, we demonstrate that the s- or p-orbital of oxygen atoms hybridizes preferentially with the d(xz) (d(yz)) orbital near the M symmetry point. This weak hybridization occurs with minimal charge transfer.
URI
https://pr.ibs.re.kr/handle/8788114/1259
ISSN
1463-9076
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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