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Comparison of Dynamical Behaviour in MAPbX3 and FAPbX3: How Do They Differ ?
Organic-inorganic lead halide perovskite compounds are shown to be very promising candidates for low cost, solution-processable, highly efficient (>22%) solar cells with a... -
Structural characterisation of a pyrochlore solid solution in the Na2O●...
3 days on POLARIS are requested to study three pyrochlore compositions in the Na2O●Bi2O3●TiO2 system that has been reported only once in the literature, without any... -
Water Binding and Solvent Dynamics in Natural Deep Eutectic Solvents
Deep Eutectic Solvents (DES) are molecular mixtures similar to ionic liquids, having melting points below room temperature. However instead of being composed of a salt, the... -
Dynamics within the Plastic Crystal Phases of Hydrogen Chloride
Hydrogen chloride exhibits a complex phase diagram account made of its simple molecular structure. Three crystalline phases are known to exist at ambient pressure below its... -
Neutron Total Scattering Investigation of Temperature Driven Transitions in L...
This proposal is concerned with determining the local structure of LaCoO3 and observing changes within this as the material undergoes some well characterised temperature driven... -
Phase Diagram of Ba1-xKxFe2As2
In the new class of iron pnictide superconductors, there is evidence of phase coexistence close to the phase boundary between the SDW and superconducting order produced by hole... -
Structure Direction from Electrons in the Presence of the 'Alkalide Option': ...
We request 5 days on SANDALS to investigate the structural effect of expanded metals in the LiNa-MeNH2 system at three different concentrations. The interplay between... -
The search for long range exchange interactions in the S=1 square lattice ant...
Exchange interactions in insulators can be understood in terms of the Andersen exchange picture in which the Hamiltonian has two contributions: (i) a kinetic term characterized... -
Transport properties of sodium ions in novel electrochemical storage systems
The electrochemical energy storage and conversion devices are the key components in future?s smart energy grids enabling on-demand and efficient energy usage. To date, flow,... -
A comparative IFWS study of dynamics in the photosynthetic antenna complex LH...
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Understanding the effects of pressure and temperature on the structure of an ...
The discovery of superconductivity in iron-pnictide materials has generated much excitement in the past year about possibly unifying mechanisms for high-temperature... -
Stochastic vs. Intermolecular Motions in Strongly Associated Liquids: The Cas...
Neutron scattering is a powerful technique to study stochastic motions in liquids but it requires an energy resolution well below the meV range. As a consequence, quasielastic... -
Cooperative Jahn-Teller distortions in Ru4+ double perovskites
The aim of the proposed experiment is to use HRPD to follow the temperature dependence of the crystal structures of the double perovskites La2MgRuO6 and La2CoRuO6. This is of... -
Direct measurement of the nuclear momentum distribution in a switchable diele...
The family of hybrid Prussian blue analogues includes many electroactive materials, where organic cations moving within the pores of the cyanide framework cause unusual and... -
The full spin-wave dispersion of CaFe2O4 in the A and B phases:
CaFe2O4 shows an interplay between magnetic structures termed the A and B phases. In this proposal, we request time to measure the spin wave dispersion using MERLIN. Previous... -
ZIF-8 cooling
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Dynamics studies of water and ice in carbon nanohorns
Recent diffraction [GEM] and DINS [Vesuvio] studies of water in carbon nanohorns have suggested that there is substantial proton delocalisation along the H-bond between... -
Competition between C-H---O hydrogen bonds and C=O----Br halogen bonds
Our main objective in this proposal is to study the competition between halogen and hydrogen bonding as a function of temperature in the complex (CH3)2C=O--- Br2. The results of... -
Magnetostriction in (Bi,La) orthoferrites
We have recently observed unusual magnetostrictive behaviour in Bi0.5La0.5FeO3 (BLFO), a phenomenon which is not present in either solid solution end member. This proposal seeks... -
Interlayer and Interparticle Water in Clays
Clay barriers are routinely used in nuclear waste repositories to isolate radionuclides from the biosphere. Such barriers have to be carefully designed to remain effective for...