| EPSRC Reference: |
GR/M14395/01 |
| Title: |
MAGNETO-OPTICAL PROPERTIES & SYNTHESIS OF MOLECULAR MAGNETS OF TRANSITION METAL CLUSTERS |
| Principal Investigator: |
Thomson, Professor A |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Chemistry |
| Organisation: |
University of East Anglia |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 January 1999 |
Ends: |
31 December 2001 |
Value (£): |
157,645
|
| EPSRC Research Topic Classifications: |
| Chemical Synthetic Methodology |
|
|
| EPSRC Industrial Sector Classifications: |
| Chemicals |
Electronics |
| No relevance to Underpinning Sectors |
|
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
A two prolonged programme, building on our earlier MCD work on the super-paramagnetic cluster [Mn12012(OAc)16(H20)4] [Mn12], will investigate the optical and magnetic properties and carry out syntheses of new clusters with interesting paramagnetic relaxation propertises. An important novel aim is to seek photo-addressable magnetic materials which possess either photo-spin scrambling or spin memory. Magnetic and optical work: to characterise the MCD-deteced hysteresis behaviour of the exitedoptical states of [Mn12] in glassy samples and as partially oriented films and polycrystalline arrays: to study photo-pumping of spins between ground and exited state spin manifolds in a search for spin scrambling and/or spin memory effects in the exited optical states which may lead to photo-erasure or -creation of spin state polarisation.Synthesis: Novel Nano-cluster magnets based on the [Mn12] cluster will be engineered by changing overall cluster oxidation states, by exchanging the encapsulating carboxylate ligands to allow for ease of molecular orientation and by synthesising hetero-metal clusters based on the [Mn12] framework. A survey will be made of the magneto-optic properties of new transition metal clusters including those with Fe(III) oxyhydroxy cores and their congeners such as those containing Cr(III) and Mn(III) as well as new clusters containing Ni(II)24.
|
|
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.uea.ac.uk |