University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Photoemission studies of chiral metal surfaces using circularly polarized synchrotron radiation

Attard, GA, Watson, D, Seddon, EA, Cornelius, SM, Herrero, E and Feliu, J (2001) Photoemission studies of chiral metal surfaces using circularly polarized synchrotron radiation Physical Review B - Condensed Matter and Materials Physics, 64 (11). pp. 1154081-1154086.

[img]
Preview
PDF
phys rev b 2001.pdf
Available under License : See the attached licence file.

Download (108kB)
[img]
Preview
PDF (licence)
SRI_deposit_agreement.pdf

Download (33kB)

Abstract

In an attempt to measure classical circular dichroism (CD) in the photoemission of electrons from a solid surface, valence-band photoemission from clean and adsorbate-covered chiral metal surfaces has been investigated using circularly polarized synchrotron radiation. An experimental geometry was used whereby q̄, the polarization of the radiation, k̄, the wave vector of the photoemitted electrons, and n̄, the surface normal, were coplanar. It was anticipated that by doing this, so-called CDAD (circular dichroism in the angular distribution) effects associated with chiral photoemission geometries would be decoupled from classical CD arising from the difference in absorption cross-section for left and right circularly polarized light of electrons in energy states associated with R and S kinks. However, from the magnitude of the effects observed, it is evident that any classical CD features in the photoelectron spectrum arising from kinks, including photoemission from surface states or resonances, are swamped by other dichroic effects. We conclude that final-state effects in the diffraction of photoelectrons dominate the intensity of all peaks observed in angle-resolved photoemission from chiral, single crystal, metal surfaces using circularly polarized photons.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
AuthorsEmailORCID
Attard, GAUNSPECIFIEDUNSPECIFIED
Watson, DUNSPECIFIEDUNSPECIFIED
Seddon, EAUNSPECIFIEDUNSPECIFIED
Cornelius, SMUNSPECIFIEDUNSPECIFIED
Herrero, EUNSPECIFIEDUNSPECIFIED
Feliu, JUNSPECIFIEDUNSPECIFIED
Date : 15 September 2001
Identification Number : 10.1103/PhysRevB.49.15682
Additional Information : Copyright 2001 The American Physical Society.
Depositing User : Symplectic Elements
Date Deposited : 23 Aug 2013 09:12
Last Modified : 23 Sep 2013 20:15
URI: http://epubs.surrey.ac.uk/id/eprint/794992

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800