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Divacancy superstructures and enhanced thermopower in NaxCayCoO2
Replacing Na ions in NaxCoO2 with divalent Ca ions results in the formation of ordered arrays of divacancy clusters, rather than the trivacancy clusters found for the pure... -
Diffuse magnetic scattering in the Pyrochlore magnet Sm2Ti2O7
Rare-earth Pyrochlores of the form A2B2O7 display a diverse set of physical phenomena emanating from the strong geometrical frustration experienced by magnetic moments on this... -
Short range order in ferroelectric deuterated triglycine sulphate
We want to better understand the structural modifications and short-range correlations in ferroelectric triglycine sulphate near the ferroelectric phase transition. Above the... -
Variable Temperature studies of an anomalous proton sponge benzoic acid co-cr...
As part of a long-running programme, we have identified many co-crystallisation systems producing hydrogen-bonded molecular complexes yielding fascinating X-ray diffraction and... -
Magnetic and charge ordering, superstructures and diffuse scattering in de-in...
Sodium Cobaltate has a complex phase diagram, exhibiting various phenomena and a kaleidoscope of superlattice diffraction patterns as the concentration of sodium is varied. It... -
Ab-inito lattice dynamics and thermal diffuse scattering in amino acids and p...
We propose to simultaneously collect diffuse and Bragg scattering in the amino acids L-Serine, L-Alanine, and their joint dipeptide L-Alanine-L-Serine hydrate and ask for 8 days... -
Wide-angle neutron scattering study of the unusual nematic-nematic transition...
An intriguing unknown variant of the nematic liquid-crystal phase (Nx) has been discovered first in a class of main-chain polymers, and later in LC dimers connected via an... -
Anisotropic Displacement Parameters and Diffuse Scattering in Graphite
The accurate description of van-der-Waals forces within DFT is currently one of the most active areas of research in computational physics and chemistry. In the case of soft... -
Superstructures in insulating and metallic lanthanum-doped sodium cobaltate
The thermoelectric properties of NaxCoO2 can be substantially improved by replacing Na ions by cations of higher valence. Our neutron diffraction studies on SXD for doping with...