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Thermoelastic properties of ammonium sulfate, (ND4)2SO4, and the P-T dependen...
Ammonium sulfate exhibits a first-order phase transition upon cooling through ~ 224 K at room pressure, from a paraelectric to a ferroelectric crystal. There have been no... -
The phase stability of alpha-glycine at high pressure
Though the beta and gamma forms of the simplest amino acid, glycine, yield a variety of different phases on application of pressure, Raman data suggest that the most common... -
Determination of the Thermoelastic Properties of Jadeite
Jadeite, NaAlSi2O6 is an important mineral in metamorphic rocks and occurs in low as well as high metamorphic grade. Previously we have determined the thermoelastic properties... -
Comparison of the Compression Behaviour of BaSnO3 and Ba0.575Sr0.425SnO3
We propose to study the effect of pressure on the structure of the tetragonal Ba0.575Sr0.425SnO3, The behaviour will be compared to the compression of the cubic BaSnO3 (parent... -
Polymorphism and polymerisation of methacrylic acid
This proposal seeks to explore the polymorphism and polymerisation of methacrylic acid using high pressure. We have recently studied acrylic acid at high pressure using single... -
Neutron diffraction at high pressure on alkali diborate glass
Borate glasses are archetypal amorphous oxide characterized by important medium range organisation. These glasses exhibit pressure-induced boron coordination change. The... -
Non-uniform elastic deformation of layered crystal structures
The experiment will resolve a discrepancy between earlier experiments carried out very recently by us and work elsewhere on the hydrostatic compression of a series of 211... -
High Pressure Thermoelastic Properties of Thermoelectric PbSe
We propose to study the effect of pressure and temperature on the crystal structure and the elasticproperties of lead selenide, an important material for conversion of waste... -
Towards Neutron Scattering of Amorphous Materials in the Gigapascal Regime
Over the past few years, extensive developments have been made in the use of neutron diffraction for structural studies of liquids and amorphous materials at high pressure.... -
High-pressure, high-temperature studies of energetic materials - FOX-7, CL-20...
The aims of this proposal are to explore the high-pressure, high-temperature behaviour of 3 important energetic materials - FOX-7, CL-20, and ADN. These experiments are expected... -
Understanding the "post-perovskite" structure (II): the Behaviour of CaPtO3 a...
Recently, our view of the Earth¿s lower mantle changed dramatically. It had been thought that two major phases were present throughout all of the lower mantle:... -
Pressure response of CoMnSi: an anisotropic metamagnet with giant magnetoelas...
We wish to use elastic (this experiment) and inelastic neutron scattering (experiments on MARI and MERLIN submitted in this round) as an approach to quantify the change in... -
Mechanism of network collapse in strong network glass forming systems
The object of this proposal is to investigate the mechanism of network collapse in the ¿strong¿ network glass forming system GeO2 in the pressure range between 9 and 16 GPa... -
Towards the Calibration of Chemical Pressure
The application of hydrostatic pressure allows the precise tuning of atomic separations, which control electronic structure and virtually all the interatomic interactions that... -
pressure induced para-antiferromagnetic switching in the multiferroic BiFeO3 ...
We have shown using previous experiments that moderate hydrostatic pressures can be used to switch phase from tetragonal to rhombohedral in the material BiFeO3 - PbTiO3 at room... -
Pressure-Induced Linkage Isomerism in a Prussian Blue Analogue
The Prussian blue analogue K0.4Fe4[Cr(CN)6]2.8.16H2O (1) is a soft ferromagnet at ambient pressure with a critical temperature (Tc) of 19 K. Bridging cyanides are oriented in... -
The effect of pressure on the Fe-Fe bond and carbonyl groups in Fe2(CO)9
We propose an investigation in which the crystal structure of Fe2(CO)9 will be studied as a function of pressure. This compound has previously been investigated by high pressure... -
Neutron Training Course on PEARL
This dataset has no description
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A high-pressure study of monovalent bifluorides
This proposal seeks PEARL beam time to conduct the first high-pressure neutron diffraction study of the monovalent azides XDF2, where X = Na, ND4, Cs and Tl. In so doing, we... -
Pressure-induced changes in intermediate range order in the candidate polyamo...
This proposal is a continued exploration of the non-recoverable changes that have been reported in the structure of vitreous SiO2 when compressed. This proposed experiment will...
