-
The icy-moon analogue of MgSiO3-perovskite: MgSO4.9H2O a high-pressure study
Mg-sulfate 11-hydrate (meridianiite) is decomposed by pressure to form Mg-sulfate 9-hydrate + ice, a process that will occur in the mantles of large icy planetary bodies and... -
Compressible Liquids
Liquids are commonly known to be incompressible. However, a recently invented class of materials called Porous Liquids, which exhibit permanent porosity in the liquid phase, may... -
Towards an accurate structural phase diagram for the novel BiScO3-PbTiO3 ferr...
The aim of this experiment is to determine accurately the crystal structures of phases in the (1-x)BiScO3-xPbTiO3 (BST-PT) perovskite phase diagram, particularly in the vicinity... -
Continued studies of the temperature-pressure phase diagram of BiFeO3
Bismuth ferrite is the most widely studied multiferroic material primarily due to the observation of both room temperature magnetic and electric ordering. Despite extensive... -
Search for high pressure phase transitions in Bi0.8Ln0.2FeO3 (Ln = La and Tb)
The crystal and magnetic structures of two substituted variants of the multiferroic phase BiFeO3 will be studied as a function of pressure. Both Bi0.8La0.2FeO3 and... -
The Effect of Pressure on the Crystal Structure of Serine Hydrate
Serine monohydrate undergoes a phase transition at 5.2 GPa which involves reorientation of water molecules. It appears that this disrupts H-bonding elsewhere in the crystal,... -
Alloxan - a high density organic under pressure
Organic molecular crystal structures have densities that are typically in the range 1.2-1.4 gcm-3 although these can be increased, in general, to ca. 2.0 GPa through application... -
Thermodynamic Control of Isotopic Polymorphism
Co-crystals of 4-methylpyridine and pentachlorophenol (MP-PCP) exhibit the very unusual property of isotopic polymorphism, formation of different phases by samples differing... -
Morphological Evolution of Hybrid Perovskite Films during crystallisation, an...
Hybrid Perovskites have significant potential in a range of functional applications particularly photovoltaics. They suffer from instability, prone to degradation under... -
Textured magnetic phases at a ferromagnetic quantum phase transition
Quantum critically is a unifying theme across correlated electron physics. Classical or thermal phase transitions occur at nonzero temperature and are driven by thermal... -
High-pressure and variable-temperature studies of RDX
Previous studies have suggested that a high-pressure form of the widely used secondary explosive RDX can be obtained above ~4 GPa and 488 K. This phase is reported to be... -
Investigation of new phase, MnBi2, by in situ high-pressure neutron diffraction
Permanent magnets are essential for renewable energy technologies such as electric cars and wind turbines. Global demand for magnets is increasing, however, the elements used to... -
The Ability of Trimethylamine N-Oxide to Resist Pressure Induced Structural P...
Trimethylamine N-Oxide (TMAO) is thought to have the extraordinary ability of allowing organisms to adapt to extreme environments of high pressure, the most famous example being... -
Compressible Liquids Part 2
Liquids are commonly known to be incompressible. However, a recently invented class of materials called Porous Liquids, which exhibit permanent porosity in the liquid phase, are... -
Proving the successful manufacturing of chemically-ordered L10 FeNi
The tetragonal chemically-ordered L10 FeNi phase has recently attracted significant attention for advanced permanent magnet applications due to its compelling magnetic... -
Pressure-induced phase transition in methylammonium lead iodide
One key to the famous and remarkable photovoltaic properties of methylammonium lead iodide is its structural flexibility. This flexibility can be characterised by testing the... -
Understanding Chemical Expansion in Perovskite Oxides: Impact of Long-Range D...
"Chemical expansion" occurs when some ceramics expand upon releasing oxygen. Their ability to effectively "breathe" oxygen makes them of use in sustainable energy... -
Phase transitions in non-centrosymmetric Dion-Jacobson Phases
Ferroelectric materials - those which exhibit a spontaneous and switchable electrical polarization - have a wide range of applications. However materials which exhibit... -
4f electronic states of the filled skutterudite compound PrFe4Sb12 synthesize...
Crystals of the filled skutterudite PrFe4Sb12 with the 73~87% Pr-site filling fractions prepared under ambient pressure show some magnetic ordering around 5 K and their... -
Structural Distortions in the Spin Ladder Compounds Ba2CuTe1-xWxO6
Ba2CuTeO6 has garnered considerable interest as the combination of stacking sequence and Cu2+ displacements lead to a magnetic geometry that reproduce the effects of a spin...
