EPSRC logo

Details of Grant 

EPSRC Reference: GR/M83322/01
Title: PHYSICS OF COLOSSAL MAGNETORESISTANCE IN COMPLEX OXIDES
Principal Investigator: Blundell, Professor S
Other Investigators:
Battle, Professor P Singleton, Dr J Rosseinsky, Professor M
Researcher Co-Investigators:
Project Partners:
Department: Oxford Physics
Organisation: University of Oxford
Scheme: Standard Research (Pre-FEC)
Starts: 29 February 2000 Ends: 28 August 2003 Value (£): 301,672
EPSRC Research Topic Classifications:
Magnetism/Magnetic Phenomena Materials Characterisation
Materials Synthesis & Growth
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors Electronics
Related Grants:
Panel History:  
Summary on Grant Application Form
Our collaboration represents an interdisciplinary physics/chemistry approach to the study of colossal magnetoresistance (CMR). Our previous EPSRC-supported work has gained international recognition. This proposal builds on this research by extending the frequency range over which we can perform high field transport measurements, allowing us to develop high-magnetic-field susceptometry, and providing access to muon and neutron beams for magnetic and structural characterisation. These techniques will be applied to existing CMR materials and also to new compounds which we plan to prepare in order to optimise the low-field magnetoresistance (MR) response. Following the first observation of MR in iron/cobalt oxides by our group, and also the discovery of a low temperature glassy ground state, we wish to investigate solid solutions between SrFeO3 and SrCoO3, using the Fe/Co ratio, oxygen concentration and the dimensionality in Ruddlesden-Popper phases to optimise the MR. Also we wish to study layered Mn oxides, with simple spacer layers containing lanthanide and group 2 cations as a strategy for finding materials which show low-field MR and low Curie temperatures. We propose to enhance the interlayer coupling by preparing new Mn oxides with transition metal and post-transition metal-containing spacer layers, to manipulate the MR associated with the layer structure.
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.ox.ac.uk