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Origins of flexibility in a zero-thermal-expansion framework
Our proposal is to use neutron total scattering on GEM to study framework flexibility and the phenomenology of the displacive phase transition in the cyanide-containing... -
A pair distribution function study to determine the local structure of the ti...
BaTiO3 is the prototypical ferroelectic perovskite and has been well studied for over 60 years. The standard structural picture is that it is cubic and paraelectric at high... -
Sample C: Ti-64 Hot-Rolled
This dataset has no description
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Total scattering from multiferroic bismuth ferrite
Bismuth Ferrite (BiFeO3) is the archetypal multiferroic material and as such has been copiously studied using a wide variety of techniques. Despite this, new structural and... -
The role of Bi in magnetic and structural dimerization of Ba3BiRu2O9.
The aim of the present proposal is to use total scattering to investigate changes in the local structure of Ba3BiRu2O9. This compound undergoes an unusual magnetovolume... -
Structural study of oxygen ion conduction in microporous Mayenite
The crystal unit cell of mayenite, 12CaO.7Al2O3, consists of a cubic lattice of [Ca24Al28O64]4+ with the remaining 2*O2- contained in cages, which are linked by channels within... -
Dynamical disorder or incipient nano-ferroic distortions in CaSnO3 perovskite?
It has always been assumed that CaSnO3 perovskite remains orthorhombic (Pbnm) as a function of temperature up to its melting point, and is rather unremarkable in many ways.... -
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,... -
Structure and dynamics of quartz-like metal-organic frameworks (MOFs)
As part of an ongoing effort to understand the underlying physics of MOFs, we propose to study the local structure and dynamics in two quartz-like systems: indium deuterium... -
How molecular solids prepare for phase transitions: The phase transition in o...
Oxalyl chloride (mpt. 260 K), forms an ordered phase at low temperature, but a disordered phase between 250 K and the melting point. In previous beamtime we aimed to carry out... -
Effects of Local Displacements on Phase Transitions in Sr- and Ca-substituted...
Ferroelectric BaTiO3 (BT) constitutes a base system for many practical applications ranging from classical capacitors to tunable dielectrics. A dielectric response in BT is... -
The Dynamics of Breathing Metal-Organic Frameworks from Total Scattering
Metal-organic framework materials are a topical family of nanoporous solids that have potential applications in molecular storage, separation and catalysis. Some of these... -
Development of a Novel Low - Intermediate Temperature Solid Proton Conductor
The compound, Si5O(PO4)6, is a component of a solid phosphoric acid catalyst, it has highly unusual coordination of the silicon (octahedral, as well as the more common... -
The Dynamics of Breathing Metal-Organic Frameworks from Total Scattering
Metal-organic framework materials are a family of nanoporous solids that have potential applications in molecular storage, separation and catalysis. Some of these materials show... -
Neutron diffraction study of the casting technology of antique bronze coins
Neutron tomography data on high-Pb antique bronze coins indicated that two different copper alloy phases are formed during the casting process. We propose to use GEM for... -
1D magnetic structure of a multiferroic metal-formate perovskite
The metal-organic framework perovskite analogue guanadinium copper(II) formate has achieved considerable recent attention for its multiferroic properties and consequent... -
Framework flexibility and host-guest hydrogen bonding in the metal-organic do...
The recently reported double perovskite analogue imidazolium potassium iron(III) cyanide is noteworthy for two reasons. First, the order-disorder phase transitions, in which the... -
Local structure of ortho-terphenyl glass
Ortho-terphenyl is a paradigmatic example of a molecular glass-former; yet the structure of its glass has never been fully described. We have recently demonstrated that, by... -
Total Scattering Study of Caesium and Thallium Azides
This proposal seeks to conduct total-scattering studies on thallium and caesium azides to investigate the effect of temperature on the atomic motions, particularly of the azide... -
Characterising Early Iron Age Indian Iron Smelting Technology: neutron analysis
Recent archaeological research, supported by radiocarbon dates, indicates that iron production in India can now be dated to the earlier part of the 2nd millennium BC, pre-dating...
