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Low temperature structural changes of complex ferroelectric La2Ti2O7
La2Ti2O7 is part of an intriguing family of layered perovskite-related materials which display an unusual type of ferroelectricity. In contrast to standard ABO3 perovskites (in... -
Dirac Nodal Line Magnons in a Stacked Honeycomb Magnet
On the basis of exchange couplings obtained from early inelastic neutron measurements, we conjecture that the stacked honeycomb magnet FeTiO3 contains Dirac nodal lines in the... -
Reinvestigation of muon sites in the high-Tc superconductor, YBa2Cu3O6
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Structure determination of water-rich and highly metastable energy-storage ma...
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The PVT equation of state of D2O ice III / IX
The high-pressure form of solid water, ice III, is the equilibrium phase in contact with liquid water at pressures from about 2.0 - 3.5 kbar. Consequently, its properties are... -
Apatite-type Oxides for Energy Applications: Symmetry Distortion Mode Analysi...
Apatites are a large group of chemically and structurally flexible functional materials with important applications as solid electrolytes. The majority of known apatite... -
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... -
Deuteration-induced phase transition in a multiferroic framework material
The hybrid organic-inorganic perovskites are of great interest as functional materials, because they combine the well-established perovskite topology with new physics and... -
Understanding of Competing Magnetic Processes in La0.7Sr0.3MnxFe1-xO3 Perovskite
The aim of this experiment is to complete the understanding of the complex nature of the structural and magnetic interactions in the La0.7Sr0.3Mn1-xFexO3 series of materials in... -
Rotational dynamics in the ferroelectric and giant barocaloric (NH4)2SO4
Barocaloric materials, in which a large isothermal entropy change is associated with a pressure induced phase transition, offer an alternative to vapour-compression technologies... -
Spin dynamics on the frustrated Fe7 molecular cluster
Fe7 is a magnetic cluster formed by two Fe(III) triangles bridged together by a Fe(III) ion. The antiferromagnetic exchange interaction within the two triangles makes the system... -
Ionic mobility in soggy sand electrolytes
Ionic liquids (ILs) are gaining increased interest as electrolytes given their thermal and chemical stability, wide electrochemical windows, and ionic conductivities. However,... -
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... -
Search for structural modulation lifting the orbital degeneracy in triangular...
This proposal is part of our research programme on spin and orbital order in frustrated systems. AgNiO2 has a layered crystal structure with Jahn-Teller active Ni3+ ions forming... -
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... -
Test of in-situ thermo-cap for slab cans
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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... -
Determining the interaction between water and carbon dioxide in smectite clay...
Interactions between CO2 and clay have attracted interest in the scientific community recently. This is partly motivated by the presence of large amounts of clays in caprock... -
Crystal and magnetic structures of mixed-valent V2OPO4
The electronic states of transition metal oxides usually result from a coupling between the three degrees of freedom: charge, orbital and spin states. When metal-metal distances... -
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...
