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In-situ studies of amides with ammonia
The aim of this proposal is to determine that materials that are present in the ammoniation of amides. -
Improper ferroelectricity in hexagonal tungsten bronzes
We address the detailed atomistic mechanism of ferroelectricity in a new family of oxides typified by the composition CsNbW2O9. Contrary to the mechanism in most ferroelectrics,... -
The Magnetic Structure of LaCoxMn1-xO3 (x = 0.75)
It is the aim of the current proposal to examine in detail the magnetic structure of LaCo0.75Mn0.25O3 at low temperature, which should provide insight into the nature of the... -
Glasses and supercooled liquids in the Se-Cl system
Little is known on the structure and properties of vitreous Se doped with halogens in contrast to group III, IV, V, and VI dopants and also many metal additives. Our Raman... -
Hydrogen Release Systems: MX2.(NH3)n (M=Mg, X=Cl) with LiH and MgH2
The applicants seek 3 days of beam time on POLARIS to study hydrogen release systems comprising M(NH3)6X2 (M=Mg, X=Cl) coupled with LiH and MgH. Mg(NH3)6Cl2 is an important... -
The ferroelectric phase transition in Dion-Jacobson layered perovskites - con...
Ferroelectricity in the Dion-Jacobson (DJ) family of layered perovskites arises from a 'trilinear coupling', whereby two non-polar lattice modes interact in such a way to... -
YMnO3-x : Mn(I) in a mixed metal oxide ?
Topotactic reduction of YMnO3 with CaH2 yields three new reduced phases. Two of these phases appear to have compositions close to YMnO2.5 but with very different anion vacancy... -
Influence of structure on the enigmatic thermal properties of a new layered o...
Thermoelectric (TE) materials are set to play an increasingly important role in the development of new energy efficient technologies by generating electrical current from waste... -
Reactivity studies of CeO2 and metal supported CeO2 materials.
Cerium dioxide is widely used as carrier on which noble metals are dispersed to act as catalysts for a range of reactions. One of the most widely used applications of this... -
Are La3Ni2NbO9 and La3Ni2TaO9 relaxor ferromagnets?
A relaxor ferroelectric exhibits a net polarisation only in an applied electric field due to the co-alignment of polar nanoregions. In La3Ni2SbO9 we found the magnetic... -
Structural Aspects and Magnetic Order in Fe based perovskite oxide fluorides ...
In this work, we will investigate the structures (crystallographic and magnetic) of Mn5VO8 and a range of Fe containing perovskite oxide fluorides. In terms of the former, this... -
Anion disorder in Ti pyrochlores as a precursor in the transition to fluorite
The aim of this work is to understand the nature of anion disordering in pyrochlore oxides and to establish what, if any, correlations exist between the anion position, disorder... -
High-temperature diffraction studies to investigate the Li-ion migration path...
We propose to study the crystal structure of the inverse spinel Li3CrV2O8 using variable temperature powder neutron diffraction. By conducting these neutron experiments, we will... -
The First Structural Characterisation of some Gallium Oxide Polymorphs
We propose to make the first detailed structural study of some polymorphs of gallium oxide that remain poorly characterised and yet have applications in catalysis and are used... -
Total Scattering Study of Caesium and Thallium Azides
This proposal seeks to conduct total-scattering studies on thallium and caesium azides to investigate the effect of temperature on the atomic motions, particularly of the azide... -
Particle and temperature dependent solubility limits in LiFePO4
In extension of our previous study on particle size dependent solubility limits in nano-sized LiFePO4 we wish to extend our study to temperature dependent solubility limits in... -
The Anderson-Gruneisen parameter and high P/T crystal structure of post-perov...
Recently, our view of the Earth¿s lower mantle changed dramatically. It had been thought that two major phases were present in all the lower mantle: MgSiO3-perovskite (PV) and... -
Mg_sample5_-150deg_a;s-5;e0.00;p34.74
This dataset has no description
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Possible high-temperature polar phases in the [110] layered perovskites NdBaI...
Geometric ferroelectrics are an unusual and rare class of materials which exhibit spontaneous electrical polarisation due purely to 'geometric' effects, i.e. caused by atomic... -
Local cation ordering in bismuth yttrium ytterbium oxide solid electrolytes
Solid electrolytes based on Bi2O3 exhibit high conductivity at intermediate temperatures (300-600 deg C) and recent research has revealed the true potential of these materials...
