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Quantum renormalisation of spin waves in a square lattice antiferromagnet
The two dimensional Heisenberg antiferromagnet on a square lattice is one of the most studied model in quantum magnetism . This is in part due to its intrinsic interest but also... -
Negative muon spin rotation and relaxation for MgB2 at low temperatures
This is a continuation negative-muon spin rotation and relaxation (mu-SR) experiment on MgB2 having a superconducting transition at 39 K. Since positive muons start to diffuse... -
Vacancy Distribution in Praseodymium Doped Ceria
Doped cerias are currently being used as oxide ion conducting electrolyte materials in solid oxide fuel cells (SOFCs). Depending on the nature and concentration of the dopant... -
Quantum dynamics in a J_eff=1/2 isotropic triangular-lattice antiferromagnet ...
This proposal is part of our research programme to explore the spin dynamics of strongly-frustrated quantum magnets. A canonical model is the spin-1/2 triangular antiferromagnet... -
Negative thermal expansion in V2OPO4
Much effort has been devoted to the research of new NTE materials and the understanding of the mechanism driving this phenomenon. As part of our ERC grant on orbital... -
Perfluorocarbon-loaded polymeric nanoparticles with multiple perfluorocarbon ...
Ultrasound is a very attractive and patient-friendly imaging technique, as it is easy to use, fast and non-invasive. Nevertheless, its use is severely limited by the low... -
Incommensurate-commensurate phase transitions in K2SeO4
Materials with incommensurate structures often show exotic properties (such as charge density waves). The development of reliable and efficient refinement techniques for such... -
Nuclear and magnetic structure determination of Ni-Mn-(In-Sn) Heusler alloys
The aim of the present proposal is to relate the macroscopic magnetic properties with the nuclear and magnetic structure of a series of Ni48Mn36In16-xSnx Heusler alloys. These... -
In-situ reaction of lithium amide or imide with manganese(IV) oxide
We request 3 days beam time on POLARIS for in-situ powder diffraction studies of the reactions of lithium amide or lithium imide with manganese(IV) oxide under flowing argon or... -
Formation and ammonia decomposition behaviour of lithium nitride hydride
Ammonia is seen as a key part of the transition to a sustainable energy economy, but needs decomposition catalysts to release its stored hydrogen. Lithium nitride-hydride... -
Simltaneous dielectric spectroscopy and neutron diffraction
We have constructed a novel microwave frequency resonator that can sit within the GEM and POLARIS diffractometers and will allow us to simultaneously collect diffraction and... -
Sensing SO2 in Robust Porous MOF Materials via Simultaneous Microwave Dielect...
We seek to develop new MOFs for sensing and removal of toxic gases (e.g., SO2) and request 4 days on POLARIS to study the structural binding details and dielectric data... -
Micro-, Meso-, Macro- Structure and Dynamics of Biocompatible Dental Glass Io...
Glass Ionomer Cements (GICs) have found numerous applications as bone fillers, replacements and adhesives, particularly in dentistry due to their tooth like appearance and... -
Concentrated emulsions as proxy CO2 thickeners
The proposal aims to explore the oil-in-water (brine) high internal phase emulsion systems (HIPEs) formed by nonylphenol ethoxylate surfactants using contrast variation SANS... -
In-situ lattice parameter and misfit analysis of a forged nickel-based supera...
Nickel-based superalloys have excellent high-temperature properties due to the dispersion of stronger precipitates in matrix. The properties are significantly affected by the... -
Configurational and displacive disorder in the cubic NTE material Cd(CN)2
Cubic cadmium(II) cyanide shows the most pronounced isotropic NTE effect known, with behaviour more than twice as extreme as that of better known materials such as ZrW2O8. This... -
Incommensurate magnetic fluctuation in KFe2As2
The debate whether interband or intraband scattering is crucial for Fe-based superconductors is not settled down yet. Investigation a system with completely missing electron... -
SANS from photoconductive hydrogel mixtures and their gelators.
Hydrogels are formed from a self?assembled network of fibres made up of small molecules (gelators) trap and hold water at just 1% by weight, or less, from the solution they are... -
Dental Cements and Inelastic Neutron Scattering: Meeting the Challenges of To...
In typical odontological studies water sorption in the restoration material is determined by weighing freshly mixed cement at regular intervals. In the case of resin-modified... -
In-Situ Studies of Alternative Mobile-Ions for High-Temperature Thermal Batte...
Whilst rechargeable batteries continue to take over the consumer electronics market, they are unsuitable to replace specific battery technologies, such as the thermal battery,...