Details of Grant 

EPSRC Reference:	GR/M21706/01
Title:	X-RAY DIFFRACTION STUDIES OF MAGNETISATION IN FERROMAGNETS
Principal Investigator:	Cooper, Professor M
Other Investigators:	Stirling, Professor WG
Researcher Co-Investigators:
Project Partners:
Department:	Physics
Organisation:	University of Warwick
Scheme:	Standard Research (Pre-FEC)
Starts:	26 October 1998	Ends:	25 April 2001	Value (£):	154,478
EPSRC Research Topic Classifications:	Materials Characterisation
EPSRC Industrial Sector Classifications:	No relevance to Underpinning Sectors
Related Grants:
Panel History:
Summary on Grant Application Form
X-ray diffraction studies of magnetic structure offer the opportunity to separate spin and orbital magnetisation directly (unlike the better established neutron technique) and to reveal fine details of the magnetic structure through the high wave-vector resolution inherent in SR experiments. Almost all studies to date have concentrated on antiferromagnets because of the separation of charge and magnetisation peaks in reciprocal space. Studies of ferromagnetism are more difficult: they generally require elliptically polarised radiation and modulation techniques to separate the (superimposed) magnetic and charge scattering signals. White beam methods have been demonstrated but little exploited and there have only been one or two trial experiments with monochromatic beams. The UK-CRG beamline at ESRF offers sustained, dedicated access for UK users to a highly polarised source. It is eminently suitable for the development of instrumentation and methods and the subsequent systematic study of ferromagnets. This class of materials is largely neglected elsewhere, despite its obvious practical importance in all manner of magnetic devices. Rare earth, actinide and transuranic materials will be studied in this project by two methods first a white beam method which is immediately exploitable and second a monochromatic technique which requires the development of a phase plate polariser.
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Organisation Website:	http://www.warwick.ac.uk