ePubs
The open archive for STFC research publications
Home
About ePubs
Content Policies
News
Help
Privacy/Cookies
Contact ePubs
Full Record Details
Persistent URL
http://purl.org/net/epubs/work/44010
Record Status
Checked
Record Id
44010
Title
An investigation into the effect of a chiral adsorbate on surface magnetism using spin-resolved electron spectroscopy : tartaric acid on Ni{110}
Contributors
LB Jones (CCLRC Daresbury Lab. and Liverpool Univ.)
Abstract
This research project has been concerned with the study of single-crystal catalytic surfaces modified with chiral overlayers, these having been the subject of intense research by the Liverpool group for many years. The two combinations investigated were (R)- & (S)-alanine on Cu{110} (referred to as Ala-Cu), and (R,R)- & (S,S )- tartaric acid on Ni{110} (referred to as TA-Ni). The bulk of this research project is based on a series electron spin-resolved measurements utilising the techniques of photoemission and electron scattering on the TA-Ni system, the aim being to observe the effect of the adsorbate overlayer on the electron spin polarisation exhibited by the nickel substrate. The degree of competency required to carry out this experiment necessitated a thorough understanding of the compact spin-resolving Mott polarimeter. This was achieved through an initial series of experiments with the Mott polarimeter using a standard sample, specifically, Fe<sub>80</sub>B<sub>20</sub> and Fe<sub>77</sub>B<sub>16</sub>Si<sub>5</sub> amorphous ribbons. The techniques developed using the amorphous samples were then used to characterise the nickel sample selected as the magnetic substrate onto which monolayers of tartaric acid would ultimately be applied. The characterisation included spin-resolved measurements over the secondary electron cascade, and a challenging spin-resolved Auger electron measurement. A final series of spin-resolved photoemission experiments investigates the effect of the chiral overlayer on the spin polarisation of electrons emitted form the nickel. The adsorption geometry for the Ala-Cu system was also investigated using the techniques of XPS and NEXAFS. Application of dipole selection rules to the NEXAFS data permitted the determination of several adsorption geometry parameters.
Organisation
CCLRC
,
SRS
,
3.3
,
4.1
,
5U.1
,
MPW6.1
Keywords
Chemistry
,
nickel
,
tartaric acid
,
magnetism
,
catalysis
,
spin-resolved
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Thesis
PhD, University of Liverpool, Department of Chemistry, 2006.
2006
Showing record 1 of 1
Recent Additions
Browse Organisations
Browse Journals/Series
Login to add & manage publications and access information for OA publishing
Username:
Password:
Useful Links
Chadwick & RAL Libraries
SHERPA FACT
SHERPA RoMEO
SHERPA JULIET
Journal Checker Tool
Google Scholar