Control of the Dephasing of Image-Potential States by CO Adsorption on Cu(100)

Ch. Reuß; I. L. Shumay; U. Thomann; M. Kutschera; M. Weinelt; Th. Fauster; U. Höfer

doi:10.1103/PhysRevLett.82.153

Control of the Dephasing of Image-Potential States by CO Adsorption on Cu(100)

Ch. Reuß, I. L. Shumay, U. Thomann, M. Kutschera, M. Weinelt, Th. Fauster, and U. Höfer

Phys. Rev. Lett. 82, 153 – Published 4 January 1999

Abstract

The dynamical behavior of image-potential states has been studied with two-photon photoemission for CO on Cu(100). Pure dephasing is observed as the loss of coherence in quantum beats, or derived from linewidth and lifetime measurements. A correlation to the surface order as observed by low-energy electron diffraction is also established.