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Structural distortions and magnetic ordering in oxygen depleted spin ice
Geometrical frustration in the spin ice material Dy2Ti2O7 leads to macroscopic degeneracy and the observation of magnetic diffuse neutron scattering down to the lowest... -
Diffuse scattering study of single crystal PrBa2Cu3O7-x
Standard diffraction studies of PrBCO and YBCO show that these two compounds are isostructical. However, if any Pr/Ba disorder is present in PrBCO, the diffuse scattering signal... -
The high pressure structure of deuterium
Of all the stable elements hydrogen(deuterium) is the least well studied from a structural point of view. Not one of its crystal structures has been fully charecterised. This... -
Hydrogen Disorder in the molecular complex 5-fluorocytosine: 3,5-dinitrobenzo...
As part of our program in understanding hydrogen bonding systems, exploiting crystal engineering in our synthesis of complexes containing desired HB motifs, we investigate... -
Copy of: Neutron photocrystallography study of [Ni(dppe)(n1-NO2)Cl]
Photocrystallography is an important technique in modern structural chemistry. The most recent and impressive developments of this technique in "small molecule" crystallography... -
Investigations into the solid state structure of [Rh(PiBu3)2(H3BNMe3)]BArF4 a...
[Rh(PiBu3)2(H3BNMe3)]BArF4 is a rare example of a structurally characterised model compound for the sigma-complex intermediate in the transition metal catalysed amine-borane... -
Cation substitution in synthetic meridianiite (MgSO4.11H2O): site distributio...
MgSO4.11H2O (MS11) is the most highly hydrated phase in the binary MgSO4¿H2O system. Whilst lower hydrates in this system have end-member analogues containing alternative... -
Defects and spin correlations in yttrium-doped spin ice
Excitations in spin ice fractionalize into de-confined magnetic monopoles that interact with each other via the magnetic Coulomb interaction. Substituting rare earth ions with... -
High temperature superstructures in thermoelectric oxides
Sodium cobalate has emerged as one of the best thermoelectric materials. Our previous neutron Laue diffraction studies on SXD have found ordered arrays of multivacancy clusters,... -
Elucidating the Structure of [(LaCl)Ti28O40(OEt)38(X)]; but what is X?
Metal-doped TiO2 have particular applications as in catalysis of a range of reactions as well as in luminescence materials. Our strategy is to make well-defined molecular TixOy... -
Single-Crystal Neutron Diffraction Study on [U(C5Me5)2(H)(mu¿H)]2
To our knowledge, the length of the U¿H single bond has never been accurately measured, at least not in a molecular compound by single-crystal neutron diffraction. We currently... -
Influence of superstructures on rich transport properties of lithium cobaltate
In the vicinity of x ~ 0.75, LixCoO2 has potential as a thermoelectric, since it has a high Seebeck coefficient and metallic conductivity. We have performed the first successful... -
Single-crystal neutron diffraction studies of chain-ordered brownmillerite su...
We are performing structural investigations of a series of brownmillerites (Sr,Ca)2(Fe,Co)2O5 which display long-range modulated ordering of oxygen vacancies at ambient and high... -
Investigating the origin of thermochromism in N-salicylideneanilines
Anils, N-salicylideneanilines, display thermochromism, which is thought to involve an intramolecular proton shift, but to-date the structural changes postulated to occur during... -
Charge ordering in Ortho-VIII YBCO
The relationship between spin and charge correlations (stripes) continues to be one of the major issues in high temperature (cuprate) superconductivity. Under some circumstances... -
Investigating thermal and light-induced spin crossover using neutron photocry...
Photocrystallography, a rapidly developing area in dynamic structural science, allows photoinduced structural changes and transient species to be studied. X-ray techniques have... -
Distribution of comonomer units in biodegradable semicrystalline copolymers
Aliphatic polyesters are the most attractive candidates for biodegradable polymers. To improve their physical properties while maintaining biodegradability, incorporating... -
Diffuse scattering in the paraelectric phase of titanite
Titanite consists of TiO6 octahedra arranged in chains. These are linked by SiO4 tetrahedra. At room temperature, Ti is slightly off-center resulting in an alternation of short... -
Proton ordering and hydrogen bonding in the hydrous zinc phosphate hopeite, Z...
We request 4 days of beamtime on SXD in order to locate the protons and quantify their ordering within the structure of hopeite Zn3(PO4)2.4H2O. Hopeite is an important phase in... -
Ordered structures in the new Topological Insulators
We propose to investigate the structure of the new ¿ordered¿ phases within the Bi2Se3-Bi2Te3 phase diagram of the newly discovered Topological Insulators. The bulk properties of...