Details of Grant 

EPSRC Reference:	GR/K06068/01
Title:	BRILLOUIN LIGHT SCATTERING FROM SPIN WAVES IN LAYERED MAGNETIC STRUCTURES
Principal Investigator:	Boardman, Professor A
Other Investigators:	Booth, Dr K Booth, Professor J
Researcher Co-Investigators:
Project Partners:
Department:	Pure and Applied Physics
Organisation:	University of Salford
Scheme:	Standard Research (Pre-FEC)
Starts:	01 September 1994	Ends:	31 August 1995	Value (£):	37,572
EPSRC Research Topic Classifications:	Materials Characterisation
EPSRC Industrial Sector Classifications:
Related Grants:
Panel History:
Summary on Grant Application Form
The fully operational Brillouin light scattering (BLS) equipment at Salford will be used to study linear thermal, or excited, magnons in strategically important magnetic materials. The Brillouin scattering results will be modelled to furnish essential information on vital magnetic parameters, such as gyromagnetic ratio, saturation magnetisation, anisotropy and exchange stiffness. Sequences of layered materials, so ordered to provide BLS data on exchange interaction between the layers and volume and surface anisotropies, will be investigated. BLS has the ability to probe finite vector excitations, and the results will, therefore, provide information that FMR cannot achieve. This is particularly true for dispersion cross-over regions. It is a fact that BLS is especially suited to measure small volumes, and for the study of films down to monolayer thicknesses. Magnetic interlayer coupling depends upon the state of the interfaces, but this information can be extracted by BLS. The microscopic evaluation of the magnetic properties of thin metallic film structures is very important to the fabrication of reliable high-density recording media. Elucidation of what limits the density of recording bits is but one of the strategically important uses of magnetic structures, however. BLS enables the spectral shape of the spin waves to be measured and it is this that depends strongly on the state of the microstructure of the magnetic films. A variety of layered structures will be considered, such as giant magnetoresistive elements and magnetooptic memories. Many of the samples will be provided by the EPSRC sputtering facility at Salford.
Key Findings
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Potential use in non-academic contexts
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Impacts
Description This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk Summary Date Materialised
Sectors submitted by the Researcher
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Project URL:
Further Information:
Organisation Website:	http://www.salford.ac.uk