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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... -
Characterisation of diffuse scattering in β-Ti GUM metal
The goal of this proposal is to measure the diffuse scattering in Beta-Ti Gum Metal. We have measured the phonon dispersion curves and have found several soft-phonon anomalies... -
Local magnetic order and the paramagnetic-parmagnetic transition in MnO
The antiferromagnetic-paramagnetic transition in MnO at 118 K occurs at a much lower temperature than anticipated from its Curie-Weiss constant theta~550 K. Consequently, strong... -
Structural Studies of 9-methyltriptycenes
We aim at obtaining reliable structural information for selected compounds from a series of four 9-methyltripticene derivatives. These compounds form in the solid state... -
Investigation of the low temperature magnetic order in azurite.
Both a natural mineral and quantum magnet, azurite is a candidate model of the so-called Distorted Diamond Chain system. Such a system should theoretically exhibit spin-1/3... -
Pressure Effects on Proton Migration 3,5-pyridinedicarboxylic Acid
Hydrogen bonds are ubiquitous in materials across the chemical spectrum, from inorganic to biological. They influence the structure, the functionality, and therefore the... -
A combination study of the antiferromagnetism and diffusive magnetic scatteri...
As far as we know there is no single crystal neutron study on ErPr_2Si_2 yet, mainly due to fabrication difficulties. We have grown large (diameter: 6 mm; length: 8 mm) single... -
Hydrogen-bond ordering in hexamethylenetetramine hexahydrate as a function of...
The title compound, more succinctly referred to as HMT-hydrate, is a rare example of a water-framework zeolite structure with an organic guest molecule hydrogen bonded to the... -
Programme access Nelmes
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Understanding enhanced thermoelectric properties of sodium cobaltate doped by...
The thermoelectric power factor for (Na1-y¿My¿)0.8CoO2 is dramatically increased when M = Sr, but it is essentally unchanged from the pure compound when M = Ca. Our previous SXD... -
HIGH RESOLUTION NEUTRON DIFFRACTION STUDIES ON NEW POLYMORPHS OF MAGENSIUM TE...
The development of high energy density and high efficiency hydrogen storage materials is widely considered to be one of the most challenging barriers to the adoption of fuel... -
Neutron photocrystallography study of [Ni(dppe)(n1-NO2)Cl]
Photocrystallography is a rapidly developing technique in modern structural chemistry which will result in a paradigm shift in the way that the crystallographic method is... -
Combined neutron and X-ray single-crystal diffraction studies of selected 2-p...
Hydrozones and their metal complexes exhibit subtle redistribution of electron density as a function of substitution, type of the metal center and intermolecular interactions.... -
Charge disproportionation and structural modulation in multiferroic CaMn7O12
Multiferroic materials in which strongly coupled magnetic and ferroelectric order parameters coexist attract considerable interest. Below 90 K, CaMn7O12 possesses the largest... -
diffuse scattering in PMN-PT crystals
Complex mixed-ion pervoskites, ferroelectric material (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3, attract plenty of applications due to high piezoelectric response. The difficulties result... -
Reversible B-H Bond Activation at Cationic Rh(III) Centres: Structural Charac...
Catalytic processes leading to the functionalization of organic molecules by boron-containing reagents are highly topical ¿ ranging from transition metal catalysed hydro- and... -
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... -
Two-Dimensional Incommensurate Modulation in Melilite
We have prepared large single crystals of the melilite electroltyes Ln1+xCaxGa3O7+d; (Ln = La and Nd; x = 0 and 0.5) using a floating zone mirror furnace. We have characterised... -
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... -
Quantum Spin Ice ground states and Structural Disorder in non-Kramers rare-ea...
Pyrochlore oxides based on non-Kramers rare-earth ions, such as Pr3+ and Tb3+, are candidate materials for the formation of the Quantum Spin Ice. However, structural disorder is...