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Structural investigation of the high temperature phases in ammonium iodate
We will investigate the structures of the high temperature (RT to 400K) phases of ammonium iodate, and the features that accompany these phase transitions. From our previous... -
Structural Aspects and Magnetic Order in Fe/Co based K2NiF4-type oxide fluorides
K2NiF4-type materials have attracted significant interest for a wide range of applications. While perovskite-based Fe oxide fluorides tend not to be thermally stable, e.g.... -
Understanding the Li conduction path and corrosion processes on Li7-3xGaxLa3Z...
Recently we have developed a family of fast Li-conducting garnets via doping with Li7-3xGaxLa3Zr2O12 (0 ≤ x ≤ 0.5) system. The measured bulk conductivities at room... -
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... -
Does The Crystal Structure of Leucite Evolve with Temperature to the Proposed...
The concept of an aristotype, or equivalently, the basic structure, that represents the highest symmetry crystal structure that can be attained, either experimentally, or... -
Equations of state of D2O ice III and ice V
High-pressure ices III and V each have quite small stability fields; consequently, their physical properties, in particular the P- and T-dependences, are poorly determined. We... -
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... -
High temperature neutron powder diffraction studies of polymorphism in Li3+xV...
Novel oxide ceramics with high values of lithium-ion conductivity at ambient temperatures are required as an essential part of the development of new lithium battery... -
A High-Pressure Low-Temperature Crystallographic Study of the Pm3m - I4/mcm F...
The perovskite-structured phases and their associated phase transitions remain an enduring topic of study within the solid state sciences due to their importance in both applied... -
High-Resolution High-Pressure Study of the Elpasolite Perovskite La2NiMnO6
This proposal sets out to investigate the high pressure behaviour of the double perovskitematerial with the chemical formula La2NiMnO6. The properties of this and related... -
A single-crystal diffuse scattering study of Ferrocene
We propose here a detailed study of the diffuse scattering of ferrocene with the key objective of investigating the origin of the cyclopentadienyl (Cp) ring disorder in this... -
Variable temperature structural study of oxides with low thermal conductivity
The aim of the experiment is to investigate the temperature evolution of the crystal structure for two transition metal oxides with low lattice thermal conductivities. This will... -
Vacancies and hydrogen trapping in the LaNi5-Deuterium system.
In a real material the surrounding atoms relax towards a vacancy owing to the removal of the repulsive core of the interatomic potential of the missing atom. This systematic... -
Alkylammonium Group 14 iodometallates
Main group metal iodometallate represent a large class of semiconducting materials which display optical and electronic properties of current great interest in relation to the... -
Towards designing multiferroic materials with predictable transition temperat...
BiFeO3 continues to be the most widely studing multiferroic material as a result of its room temperature magnetic and electric ordering. However, many barriers limit the... -
Improper ferroelectricity in hexagonal tungsten bronzes
We address the detailed atomistic mechanism of ferroelectricity in a new family of oxides typified by the composition CsNbW2O9. Contrary to the mechanism in most ferroelectrics,... -
The structure and thermoelastic properties of jadeite, NaAlSi2O6, above room ...
Jadeite, NaAlSi2O6, is a rare, but geologically important clinopyroxene. In the upper part of the transition zone between the upper and lower mantle most pyroxenes are... -
Environmental Apatites
Materials adopting the apatite structure are gaining an increasing importance as potential solid-oxide fuel cell electrolytes and for the chemical stabilisation of high level... -
A high pressure study of the alpha-form of acetylene dicarboxylic acid dihydrate
We propose to investigate changes that occur in acetylene dicarboxylic acid dihydrate as a function of pressure. This system, for which there is a general paucity of structural... -
Chasing the symmetry of the BiFeO3 γ-phase in the isostructural A- and B...
BiFeO3 is by far the most widely studied multiferroic material and yet many mysteries remain in the phase diagram. One mystery is the crystal structure of the high T gamma...