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A Structural Study of Tungsten Tellurite Glasses
Tungsten Tellurites are being used to make optical fibres that transmit light into the mid infra red. However, not much is know about the structure of these glasses. We wish to... -
The Structure of Alkaline Earth Germanate Glasses
We request GEM beamtime to study the structure of a series of calcium germanate glasses. The changes in coordination number and properties which occur in alkali germanate... -
Local magnetic structures of YBCO high-Tc superconductors from neutron total ...
Understanding high-temperature superconductivity is a major aim of condensed-matter science, which is of fundamental importance and may ultimately allow the design of materials... -
Programme Access Rosseinsky
This dataset has no description
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Search for the Structural Origin of the Intermediate Phase
The object of this experiment is to search for the structural origin of the intermediate phase by making careful measurements of the structure of glassy Ge-Se which is a... -
A Structural Study of Alkaline-Earth Tellurite Glasses.
We wish to better understand the interaction between the alkaline earth modifiers and the tellurite glass network. The aim is to relate structural changes in the glasses with... -
Evaluation of inelasticity effects in diffraction
For total diffraction measurements using neutrons it is important to correct the data for inelasticity effects, especially for samples containing light atoms. Conventionally... -
Null Isotope Study of Lithium Borogermanate Glasses - continuation
Alkali borogermanate glasses are topologically complex, in that [BOn] (n = 3, 4)and [GeOn] (n = 4, 5, 6) polyhedra can coexist. Equilibrium between these structural units has... -
Developing a model for tellurium coordination change in glasses
We wish to better understand the evolution of the tellurium environment in glasses with the addition of modifier oxides. The aim is to relate these structural changes to the... -
Structural Studies of Complex Mixed-Metal Pyrochlore and Spinel Oxides
Our objective is to determine structural models for some complex, mixed-metal oxide phases that are as complete as possible using analysis of PDFs produced from total neutron... -
Investigation of the phases formed during the conversion reaction of the C-ba...
FeF2 is a conversion reaction material that undergoes a reaction with lithium: FeF2+2Li++2e-<->2LiF+Fe, which results in a high theoretical capacity, 571 mA/g.... -
A structural study of titanium tellurite glasses
Tellurite glasses exhibit strong non-linear properties which are related to the asymmetric environment of the Te atom. The non-linear optical effects are strongest when the Te... -
Structure of niobium phosphate glasses
Niobium is one of the candidates for causing strong non-linear optical properties in oxide glasses. Recently, Raman gain experiments on niobium phosphate glasses were quite... -
Mercury sulphide dimorphism in liquids and glasses
A waste majority of crystals exists in several polymorphic forms in different domains of the P,T-diagram. Liquids and glasses also exhibit polyamorphism and the question remains... -
The Nature Of Zinc Substitution in Beta-Tricalcium Phosphate
We have a long established interest in the materials used for the immobilisation of nuclear waste from the domestic power industry and legacy waste from various defence... -
Effect of Composition on Local Environment of Sulphate in Silicate Glasses
We will study the effects of changes in composition and structure of alkali silicate and alkali-alkaline earth silicate glasses on its sulphate incorporation capacities. Total... -
Test experiment: Neutron diffraction on helium in silica
We request 3 days of beamtime on GEM to attempt to perform neutron diffraction on helium inside vitreous SiO2. Significant amounts of helium can be dissolved into the glass... -
Structure-Property Relationships in Polymorphs of Mn(CN)2
We will determine the atomic and magnetic structure of two polymorphs of manganese cyanide, Mn(CN)2, which exhibit negative thermal expansion (NTE). The two forms are related;... -
Long-Range and Local Structures of New Pyrochlores and Fluorites
We propose to study by total neutron scattering the structures of some complex oxide materials prepared by new hydrothermal routes in order to construct structural models... -
Structural studies of bioactive yttrium doped alumino-silicate glasses.
Yttrium doped glasses are of considerable interest due to their potential for use as in-vivo radioactive beta- emitters for localised treatment of liver cancer and other...
