Details of Grant 

EPSRC Reference:	GR/T10299/01
Title:	Mossbauer studies on uranium/iron multilayers & mixed valence oxide-flourides
Principal Investigator:	Thomas, Dr MF
Other Investigators:
Researcher Co-Investigators:
Project Partners:	The Open University University of Oxford
Department:	Physics
Organisation:	University of Liverpool
Scheme:	Standard Research (Pre-FEC)
Starts:	14 July 2004	Ends:	13 October 2005	Value (£):	10,968
EPSRC Research Topic Classifications:	Materials Characterisation Materials Processing
EPSRC Industrial Sector Classifications:	Electronics
Related Grants:
Panel History:
Summary on Grant Application Form
The research consists of two separate projects linked by the investigating technique (Mossbauer spectroscopy).Each project is concerned with the study of a series of new materials which promise to have properties that can be utilised in advanced technology.The U/Fe miltilayers project is in a field (magnetic multilayers) where there has already been considerable research and technological benefit (magnetic sensors using Giant Magnetoresistance). The novelty of this project lies in the incorporation of actinide (U) elements in the samples. These materials have previously been shunned because of their radioactive and chemical properties but they promise to provideextreme benefits in terms of magnetic behaviour.This work is an essential part of a definitive study of the U/Fe multilayer system that will determine whether the favourable magnetic properties of this system outtweigh the disadvantages in fabrication.The fluorination project explors a relatively new method ( fluorination) of changing the charge states of metal ions in oxide materials - with consequent modification of their magnetic and transport properties. This is a field where ion substitution has been routinely employed - but almost exclusively on the metal cation sites. The new feature here is the modification of the F / 0 sites with consequent changes on the charge states of the metal ions and related changes on their magnetic interactions.In both of these projects Mossbauer spectroscopy on the Fe constituents of these systems will give detailed information at the microscopic level of the interactions that drive the magnetic behaviour.
Key Findings
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Further Information:
Organisation Website:	http://www.liv.ac.uk