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Structural and Magnetic Characterisation of New Polar Oxides with Weak Ferrom...
The synthesis of a phase combining electrical polarisation P and spontaneous magnetisation M is hard because of the distinct electronic structure requirements for the main... -
In-situ thermoelectric measurements of copper chalcogenides
Thermoelectric devices are capable of converting thermal energy directly into electrical energy. The efficiency of a device is related to the characteristics of the materials of... -
The magnetic structure of an A- site and B-site ordered perovskite: CaCu3Fe2O...
Recently, double perovskites have attracted enormous attention. Now, we have successfully synthesized a quadruple perovskite compound which shows not only one but, both, A-site... -
Order-Disorder Transitions in Layered Tellurides
We have prepared a new series of layered tellurides Cr2-xInxGe2Te6, containing 2D ordered arrays of (Cr,In) cations and (Ge-Ge) pairs. Recent neutron measurements reveal indium... -
Oxygen mobility in the defect perovskite Sr3SbO5.5
We propose to use Polaris to record powder neutron diffraction data for the oxygen deficient double perovskite Sr3SbO5.5 as a function of temperature to establish the... -
In-situ conductivity study of double perovskites for use as potential anode m...
It is a challenge to develop materials for use in fuel cell applications. Presently we are preparing new perovskite and double perovskite structured compounds being potential... -
Higher resolution inspection of the hydrocarbon pool connected with the metha...
The reaction of methanol to form hydrocarbons over zeolite catalysts is an important option for conversion of natural gas or coal to liquid fuels. We have shown previously via... -
Hydrogen from ammonia using lithium imide metal nitride composites
Light metal amides and imides are a new class of highly active ammonia decomposition catalysts. Indeed, composites of lithium imide and transition metal nitrides are likely to... -
Q-dependence of the single particle motion in a molten alkali halide
An inelastic X-ray investigation on the collective inelastic dynamics of molten NaCl revealed the remarkable result that the acoustic-like dynamics is similar to the dispersion... -
High resolution neutron powder diffraction studies of the cubic spinels Li2Ni...
We propose to study the structures of Li2NiGe3O8 and Li2ZnGe3O8 using variable temperature high resolution powder neutron diffraction, with the intention of locating the Li... -
Single-Crystal Neutron Diffraction Study on [U(C5Me5)2(H)(mu¿H)]2
To our knowledge, the length of the U¿H single bond has never been accurately measured, at least not in a molecular compound by single-crystal neutron diffraction. We currently... -
Reflectometry studies of the mechanism of formation of mesoporous silicate fi...
Surfactant-silica self-assembly processes have been extensively studied since the discovery of M41S mesoporous materials in 1992. Mesoporous silicate films can be grown from... -
High-pressure and variable-temperature studies of RDX
Previous studies have suggested that a high-pressure form of the widely used secondary explosive RDX can be obtained above ~4 GPa and 488 K. This phase is reported to be... -
Short range static and thermal disorder in glasses and crystals
We seek to use the temperature-dependence of the neutron correlation function to investigate the extent of static disorder in glasses and crystals, and also to investigate the... -
Oxide Ion Disorder in Rhombohedral Bismuth Neodymium Oxide Electrolytes
Materials that exhibit high oxide ion conductivity are of interest with a view to their application in solid oxide fuel cells, gas sensors and gas separation membranes. A study... -
Ba3Mo1-xNb1+xO8.5-x/2 novel oxide ion conductor: Local structure and structur...
Oxide ion conductors are researched as potential electrolytes in solid oxide fuel cells (SOFCs). Yttria-stabilized zirconia is currently the most commonly used electrolyte in... -
Crystallographic Basis for the High Temperature, 2D Invar Effect in Copper Gi...
We wish to study the gillespite-structured phase Ba0.5Sr0.5CuSi4O10 at high temperatures to determine the structural basis of the invar-like (zero thermal expansion) of the a-b... -
Investigating the mechanisms for the in situ growth of metal oxide nanopartic...
Composites materials that combine the flexibility and mechanical robustness offered by polymers with the functionality displayed by metal oxide nanoparticles offer new insight... -
In-situ neutron powder diffraction studies of non-stoichiometry in Na battery...
We request 3 days on POLARIS to study the detailed crystal structure of a sodium battery cathode material that is currently under consideration for use in commercial sodium... -
Phase Transitions and Orbital Ordering in SrRu1-xCuxO3.
This proposal seeks to establish the importance of orbital ordering on the stability of the tetragonal phase in Cu doped SrRiuO3. Orbital ordering is believed to be a...