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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... -
Impact of Jahn-Teller Distortions in Sr0.5Pr0.5MnO3
We propose to use the HRPD to establish the sequence of structures, and the nature of the transitions between these, in two complex manganites Sr0.5Pr0.5MnO3 and... -
Neutron Diffraction Study of a Spin-1/2 Pyrochlore Lu2Mo2O5N2
Ammonolysis of R2Mo2O7 pyrochlores gives R2Mo2O5N2 containing S = ½ Mo5+. They are excellent candidate materials for investigation of quantum spin liquid phenomena and we have... -
QENS on Halide Stabilized LiBH4
LiBH4, is an ionic solid, consisting of Li+ and BH4- ions. It undergoes a structural phase transition at 383K. Within the HT phase, the BH4-units undergo rapid re-orientations,... -
Structural basis for the 2D thermal expansion tensor of petalite, LiAlSi4O10
Phases in the lithia-alumina-silica phase diagram (LAS) are of great importance owing to the technologically property of ultra-low thermal expansion (ULTE) that they frequently... -
Intermediate length scale dynamics of water
We want to investigate the collective dynamics of water at intermediate length scales (below the first structure factor peak and approaching the hydrodynamic range). To... -
Magnetostriction in (Bi,La) orthoferrites
We have recently observed unusual magnetostrictive behaviour in Bi0.5La0.5FeO3 (BLFO), a phenomenon which is not present in either solid solution end member. This proposal seeks... -
Crystal and Magnetic Structures of Ba2BTeO6 (B=Cu, Ni, Zn)
Ba2CuTeO6 and Ba2NiTeO6 are compounds with structures related to that of the proposed spin liquid Ba3CuSb2O9. The space group and nature of the B-site ordering in Ba3CuSb2O9... -
In-situ High Temperature Studies of BiFeO3 in a Stabilising Oxygen Atmosphere
The drive to find novel materials for applications such as data storage has led to a resurgence in research into multiferroic materials. Bismuth ferrite is the most widely... -
Crystal and magnetic structure of the polar ferrimagnet BaCaFe4O7
Polar or non-centrosymmetric ferri(-o)magnets offer a plethora of potential technological devices; the inherent magnetoelectric effect can underpin both pyroelectric or... -
Polymorphism and structure-property relations in 12H-type perovskite (Ba,La)1...
We request one day of beam-time on POLARIS to collect Neutron Diffraction (ND) data from three novel 12H-type hexagonal perovskites that exhibit higher than expected... -
Quenched salt hydrates new ways of probing water clusters.
Very rapid quenching of liquids to form a glass, from which crystalline phases are subsequently obtained by devitrification, is a powerful technique for obtaining novel... -
Stochastic Cation Dynamics in Photovoltaic Hybrid Perovskites under Pressure
Methylammonium lead iodide (MAPI) is one the most promising materials for photovoltaics. Notwithstanding the above, access to its phase diagram and the underlying structural...
