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Thermal expansion of recovered high-pressure ice polymorphs
The ambient-pressure phase of ice is a well-known example of a molecular solid that exhibits negative volume thermal expansion below 60 K. In a recent study carried out on HRPD... -
quantitative dark field imaging using Larmor labelling
We will determine whether a neutron technique called dark field Lamor imaging can provide quantitative information about the spatial distribution of small inhomogeneities in... -
Determination of Exact Structural Symmetries in LaFeAs1-xPxO
LaFeAs1-xPxO has recently been proposed to display unusual properties as a function of P doping with two distinct superconducting (SC) domes separated by a possible AFM phase as... -
Crystal and magnetic structures of new 2D and 3D oxyselenides La2O2Se2M (M = ...
In this proposal we request 4 days of beamtime on GEM to study four new transition metal oxyselenide materials. Two new layered oxyselenides, La2O2Se2Mn and La2O2Se2Fe have been... -
Slow versus rapid cooling of D2O ice
This dataset has no description
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Simultaneous Microwave Dielectric Spectroscopy and Neutron Diffraction to Mon...
With appropriate storage materials, ammonia has great potential as a fuel. We propose to use a novel piece of equipment, which combines microwave and neutron diffraction... -
In-situ neutron powder diffraction study of the synthesis of Half-Heusler the...
XNiSn (X = Ti, Zr, Hf) Half-Heusler materials are potential candidates for application in thermoelectric waste heat recovery. The aim of the experiment is to follow the... -
The crystal structure and thermal expansion of orthorhombic NiSi
NiSi is a technologically important material that is also of interest to Earth Scientists because of the possible role of Ni and Si in the Earth¿s core. It crystallises in the... -
Crystal structures of methanol mono-ammoniate (CD3OD.ND3) and methanol hemi-a...
Mixtures of methanol with water and ammonia dominate the chemistry of cometary bodies, leftovers of the building blocks of the outer planets. We have previously determined the... -
In Situ High Pressure NMR study of the Direct Synthesis of NaAlH4
NaAlH4 has been a model system for metal hydride hydrogen storage materials since the reaction was identified to be reversible. The decomposition pathway has been described by a... -
Pressure-induced proton migration in an energetic co-crystal
The results of these studies will provide valuable information on the effects of extreme conditions on the structures of an energetic salt and co-crystal formed between... -
Molecular Mechanisms of Enhanced Thermal Conductivity in Copper-based Nanofluids
The combination of the transport properties of liquids with the high thermal conductivity of metals is a promising way of improving heat transfer efficiency and thus reduce... -
Unpicking the signal of partial order from thermal motion in diffuse scatteri...
Orientationally-disordered water molecules in ice adopt a degree of partial order upon cooling, a process that is halted by kinetics at ~100 K in pure ice and ~60 K in KOH-doped... -
In-situ Hydrogenation of Calcium Nitride
Nitrides of alkali and alkaline earth metals are an interesting set of materials specifically for their potential in reversible hydrogen storage. However, many fundamental... -
Understanding the decomposition of ammonia by lithium-calcium imide
Among light metal amide-imide catalysts for ammonia decomposition, lithium-calcium imide is the most promising candidate for practical application. Ex situ diffraction data... -
In situ studies of mixed-phase oxygen transport membranes
The oxygen transport membrane is a system being developed by St Andrews in conjunction with industry, which at high temperatures will allow the selective migration of oxygen... -
Low temperature, high pressure phase transition of the Improper Ferroelectric...
We have found that the 134-perovskite, HgMn7O12 (HgAMnA3MnB4O12) exhibits improper ferroelectric coupling due to an unusual orbital ordering of the manganese cations on both... -
Operando Analysis of Lithium/Sulfur Cells with SANS and deuterated solvents
Lithium sulfur (Li/S) batteries have a fivefold higher theoretical gravimetric energy density (2680 Wh/kgsulfur) than state-of-the-art lithium ion batteries. However, the strong... -
Quasielastic scattering in stuffed spin ices: defects or low lying singlets?
The subjects of this proposal, Ho2+xTi2-xO7-x/2, are brand new materials1 related to Ho2Ti2O7, a spin ice2,3. They have the remarkable property of remaining disordered at very... -
Membrane perturbation and permeabilization by the lysosomotropic detergent MSDH
Lysosomes are subcellular organelles with acidic interiors (pH 3.5-5), containing enzymes that break down macromolecules and intracellular waste. Controlled release of lysosomal...
