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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... -
Pressure effect on stable and metastable structural phases in geometrically f...
Geometrically frustrated antiferromagnet LuBaCo4O7 exhibits unusual competition between two low-temperature phases with orthorhombic and monoclinic symmetry. Depending on... -
Recovery and characterisation of high-pressure phases in the systems H2O ¿ NH...
The objective of this experiment is to characterise four particular high-pressure polymorphs of various hydrates discovered by us in recent years during work carried out using... -
Development of internal strains during compression of Al-Si alloy Al-7Si-0.4Mg
This proposal follows on from our successful experiment on ENGIN-X lin 2006, where we measured the development of strains in the aluminium and silicon phases of a common casting... -
Search for Antiferromagnetic order in ZrMn2
Today, about seventy years after Laves, there exists a fairly good knowledge about the basic structural principles of Laves phases but many questions still remain. AMn-type... -
Local structure, dynamics and magnetism of the phases of cobalt imidazolate
This proposal concerns the metal-organic framework (MOF), cobalt imidazolate. Imidazole (im) is a small, flat organic molecule that forms slightly bent metal-im-metal linkages,... -
Muon radicals in the metastable phases of Sulphur
Following our investigation of alpha-orthorhombic sulphur, we will measure level crossing spectra of some other allotropes and phases, to find if the muon radical observed in... -
Structural determination of non-stoichiomentric phases Li2+yND for 0<y<1
In a series of in situ neutron diffraction measurements from deuterium up-take in Li3N, the present authors have identified a novel non-stoichiometric 'quasi-imide' of... -
Dispersed lamellar phases in dense CO2
This proposal aims to explore these dispersed lamellar phases with a variety of F7H4 derivatives,to help understand their formation in supercritical CO2 (sc-CO2). The focus is... -
Recovery and characterisation of high-pressure phases in the systems H2O ¿ NH...
The objective of this experiment is to characterise four particular high-pressure polymorphs of various hydrates discovered by us in recent years during work carried out using... -
Decomposition studies of Li(1-x)NaxND2, LiNa2(ND2)3 and Li3Na(ND2)4
We ask for 3 days on GEM to study in-situ the decomposition of the Na-substituted LiNH2 phases, Li1-xNaxND2, LiNa2(ND2)3, Li3Na(ND2)4 and their reactions with LiD. LiNH2 is the... -
Structural Studies of PbZr1-xTixO3: completing the puzzle in the tetragonal a...
We request 6 days of HRPD time in order to study the structures on the tetragonal side of the lead zirconate-titanate (PZT) phase diagram, a region that has so far been rather... -
Collective dynamics of barium crystal and liquid phases
We propose to measure the inelastic scattering S(Q,E) maps from barium in both the polycrystalline and liquid phases, based on the fact that there are intriguing similarities... -
Investigation of the phases and chemical composition of early Roman Victoriat...
The proposal involves the non-invasive measurement of ancient Roman coins by ToF diffraction techniques. A well selected series of Victoriati are to be measured in order to... -
Characterising new high-pressure phases of ammonia monohydrate
Over the past two years I have carried out high-pressure surveys of the ammonia monohydrate (AMH) phase diagram using a Paris-Edinburgh press mounted on the D20 beam-line at the... -
Neutron reflection study of effects of non-ionic alkyl ethoxylates on model w...
We propose to use NR to study the structural features of the model wheat wax films formulated from the known main components of long chain primary alcohols and an ester. By... -
Structural study of high pressure phases of multiferroic BiFeO3
BiFeO3 is a rare example of multiferroic material with a simple perovskite-like structure, having extremely large magnetic ordering temperature (TN = 650 K) and Curie... -
Opening up microemulsion phases in CO2
New types of water-in-CO2 microemulsions using mixed surfactant systems will be investigated by high-pressure SANS (HP-SANS). Exciting new results (see report on RB820030) have... -
The mechanism of Oxygen Absorption/Desorption in YBaCo4O7+d (Y114) studied by...
An uncommon oxygen absorption/desorption behavior for cobalt oxide YBaCo4O7+d was found[Karppinen et al. Chem Mater 18 2006 490]. Y114 absorbs and desorbs oxygen up to d = 1.5... -
Crystal Structures of Multiferroic MnWO4: HRPD
Multiferroic materials are rare and exceptional: they are ferroelectric and ferromagnetic in the same phase and these two properties can couple. Recently, materials with complex...