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Low temperature structural changes of complex ferroelectric La2Ti2O7
La2Ti2O7 is part of an intriguing family of layered perovskite-related materials which display an unusual type of ferroelectricity. In contrast to standard ABO3 perovskites (in... -
The role of defects in the pressure-induced octahedral tilting in Prussian bl...
We propose a high-pressure study of two Prussian blue analogues, Mn[Co(CN)6]0.67 and MnPt(CN)6. Our high-pressure XRD study shows a phase transition from cubic to rhombohedral... -
Structure determination of water-rich and highly metastable energy-storage ma...
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The PVT equation of state of D2O ice III / IX
The high-pressure form of solid water, ice III, is the equilibrium phase in contact with liquid water at pressures from about 2.0 - 3.5 kbar. Consequently, its properties are... -
PVT equation of state of D2O ice V
The high-pressure forms of solid water, ice V, is the equilibrium phase in contact with liquid water at pressures between 3.5 - 5.5 kbar. Consequently, the properties are... -
Apatite-type Oxides for Energy Applications: Symmetry Distortion Mode Analysi...
Apatites are a large group of chemically and structurally flexible functional materials with important applications as solid electrolytes. The majority of known apatite... -
Quenched salt hydrates new ways of probing water clusters.
Very rapid quenching of liquids to form a glass, from which crystalline phases are subsequently obtained by devitrification, is a powerful technique for obtaining novel... -
Overcoming Chemical Reaction Equilibrium: Determining the Chemical Potential ...
We have developed and demonstrated a novel process to overcome chemical reaction equilibrium constraints on an important reversible industrial chemical reaction by using... -
Deuteration-induced phase transition in a multiferroic framework material
The hybrid organic-inorganic perovskites are of great interest as functional materials, because they combine the well-established perovskite topology with new physics and... -
Rotational dynamics in the ferroelectric and giant barocaloric (NH4)2SO4
Barocaloric materials, in which a large isothermal entropy change is associated with a pressure induced phase transition, offer an alternative to vapour-compression technologies... -
Structural investigations of low-temperature "trapped solutions" of C60 fulle...
We propose a series of neutron scattering measurement to determine the water structure in amorphous H2O/C60 fullerene vapour deposits. We believe that these samples, prepared by... -
Ionic mobility in soggy sand electrolytes
Ionic liquids (ILs) are gaining increased interest as electrolytes given their thermal and chemical stability, wide electrochemical windows, and ionic conductivities. However,... -
Incommensurate-commensurate phase transitions in K2SeO4
Materials with incommensurate structures often show exotic properties (such as charge density waves). The development of reliable and efficient refinement techniques for such... -
Search for structural modulation lifting the orbital degeneracy in triangular...
This proposal is part of our research programme on spin and orbital order in frustrated systems. AgNiO2 has a layered crystal structure with Jahn-Teller active Ni3+ ions forming... -
Fine structure of a confined quantum translator-rotator probed with high-reso...
A process known as molecular surgery enables the synthesis of the fullerene C60 enclosing a small molecule such as H2, H2O, HF and CH4. The caged molecules in these molecular... -
In-situ reaction of lithium amide or imide with manganese(IV) oxide
We request 3 days beam time on POLARIS for in-situ powder diffraction studies of the reactions of lithium amide or lithium imide with manganese(IV) oxide under flowing argon or... -
Test of in-situ thermo-cap for slab cans
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Unravelling Structural Complexity within a Family of Frustrated S = ½ Kagome ...
Quantum spin liquids (QSLs) are exotic states of matter in which magnetic frustration and strong quantum fluctuations destroy long-range magnetic order. Here, we propose to... -
Formation and ammonia decomposition behaviour of lithium nitride hydride
Ammonia is seen as a key part of the transition to a sustainable energy economy, but needs decomposition catalysts to release its stored hydrogen. Lithium nitride-hydride... -
Simltaneous dielectric spectroscopy and neutron diffraction
We have constructed a novel microwave frequency resonator that can sit within the GEM and POLARIS diffractometers and will allow us to simultaneously collect diffraction and...
