Charging of metal adatoms on ultrathin oxide films: Au and pd on FeO/Pt(111)

被引：103

作者：

Giordano, Livia ^{[1
]}

Pacchioni, Gianfranco ^{[1
]}

Goniakowski, Jacek ^{[2
,3
]}

Nilius, Niklas ^{[4
]}

Rienks, Emile D. L. ^{[4
]}

Freund, Hans-Joachim ^{[4
]}

机构：

[1] Univ Milano Bicocca, Dipartimento Sci Mat, I-20125 Milan, Italy

[2] Inst Nanco Sci Paris, CNRS, UMR 7588, F-75015 Paris, France

[3] Univ Paris 06, F-75015 Paris, France

[4] Fritz Haber Inst Max Planck Gesellschaft, Dept Chem Phys, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.101.026102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a combined experimental (STM/scanning tunneling spectroscopy) and theoretical (density functional theory) study on the deposition of Au and Pd metal atoms on FeO/Pt(111) ultrathin films. We show that while the Pd atoms are only slightly oxidized, the Au atoms form positive ions upon deposition, at variance to a charge transfer into the Au atoms as observed for MgO/Ag(100). The modulation of the adsorption properties within the surface Moire cell and the charging induce the formation a self-assembled array of gold adatoms on FeO/Pt(111), whereas Pd atoms are randomly distributed.

引用

页数：4

共 30 条

[1] Implementation of the projector augmented-wave LDA+U method:: Application to the electronic structure of NiO [J].