Rotationally anisotropic second-harmonic generation studies of the structure and electronic properties of bimetallic interfaces: Ag on Cu(110)

Mark A. Hoffbauer; Victoria J. McVeigh

doi:10.1117/12.17876

1 July 1990 Rotationally anisotropic second-harmonic-generation studies of the structure and electronic properties of bimetallic interfaces: Ag on Cu(110)

Mark A. Hoffbauer, Victoria J. McVeigh

Author Affiliations +

Proceedings Volume 1208, Laser Photoionization and Desorption Surface Analysis Techniques; (1990) https://doi.org/10.1117/12.17876
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

Rotationally anisotropic surface second-harmonic generation (SHG) has been measured from a clean, well-ordered Cu(110) single-crystal surface as a function of both surface temperature and Ag coverage. For the clean Cu(110) surface, the temperature dependence of the SH response at a fixed azimuthal angle can be correlated with a surface phase transformation. A large decrease in the rotationally anisotropic SH response as a function of surface temperature can be related to changes in the surface disorder. The results are compared with other studies of Cu(110) surface structure using both x-ray and He-atom scattering. The rotationally anisotropic SH response has also been measured as a function of Ag coverage with the Cu(110) surface temperature fixed at 300 K. The results closely follow the formation of an ordered Ag(111)-like overlayer, the nucleation of three-dimensional Ag nanoclusters (<20 angstroms thick) that enhance the anisotropic SH response, and the subsequent growth of a ~10 monolayer thick Ag film. Variations in the rotationally anisotropic SH response as a function of Ag coverage are used to separate the resonant surface electronic contributions to the nonlinear susceptibility of the interface.

Citation Download Citation

Mark A. Hoffbauer and Victoria J. McVeigh "Rotationally anisotropic second-harmonic-generation studies of the structure and electronic properties of bimetallic interfaces: Ag on Cu(110)", Proc. SPIE 1208, Laser Photoionization and Desorption Surface Analysis Techniques, (1 July 1990); https://doi.org/10.1117/12.17876

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available