POTENTIAL DEPENDENCE OF THE NONLINEAR POLARIZABILITY OF AN AU(110) ELECTRODE

Authors
BILGER C PETTINGER B
Citation
C. Bilger et B. Pettinger, POTENTIAL DEPENDENCE OF THE NONLINEAR POLARIZABILITY OF AN AU(110) ELECTRODE, Journal of the Chemical Society. Faraday transactions (Print), 94(18), 1998, pp. 2795-2801
Citations number
20
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Journal of the Chemical Society. Faraday transactions (Print) → ACNP
ISSN journal
09565000
Volume
94
Issue
18
Year of publication
1998
Pages
2795 - 2801
Database
ISI
SICI code
0956-5000(1998)94:18<2795:PDOTNP>2.0.ZU;2-7
Abstract
The second harmonic generation (SHG) anisotropy of an Au(110) electrod e has been studied over a wide potential range varying from - 600 mV, where the surface is micro-faceted, to the unreconstructed surface at 600 mV. The interference SHG anisotropy (ISHGA), a new approach which allows one to measure directly the non-linear polarizability of the su rface was used. The potential dependence of the symmetry components is discussed. A previously proposed model for the anisotropy of the Au(1 10) surface could be confirmed. Though rather weak, a quadrupole contr ibution has also been measured, showing a significant potential depend ence.