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Paramagnetic excitations in BaFe2As2 at high temperature
One fundamental issue in the iron-based superconductors is whether the conventional local moment Heisenberg model is sufficient to describe magnetism in these materials, or... -
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... -
The effect of a vanishing pseudogap on the magnetic excitations in overdoped ...
One of the major issues in high temperature superconductivity is the nature of the so called pseudogap phase. A related question is whether the pseudogap controls the evolution... -
Negative thermal expansion in V2OPO4
Much effort has been devoted to the research of new NTE materials and the understanding of the mechanism driving this phenomenon. As part of our ERC grant on orbital... -
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... -
Ferroelastic transitions in quantum critical tetragonal tungsten bronzes
Tetragonal tungsten bronzes have three types of channels for ions with the smallest unusually occupied with Li in potassium lithium tantalate (KLT). This creates complexity... -
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... -
Spin Wave Dispersion in BaFe2As2
Understanding the magnetic exchange coupling and fundamental Hamiltonian of the parent compound of FeAs-based superconductors is extremely important, because such information... -
Understanding Deep Earth Mineralogy: A High P/T study of CaSiO3 Perovskite
CaSiO3 perovskite is the third most abundant mineral in the Earth's lower mantle; it also occurs as a major phase at lower pressures and temperatures in subduction zones, where,... -
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... -
INS of Ln(trensal-thiphene)
We have synthesised the series of lanthanide complexes Ln(trensal-thiophene), where Ln = Er, Dy, Yb and H3trensal = 2,2,2-tris(salicylideneimino)trimethylamine. These... -
Spin Waves at High Temperature in the Parent Compound of the Superconductor F...
The recently discovered iron based superconductors have transition temperatures second only to the cuprates. The majority of these compounds display superconductivity after... -
High pressure behaviour of ammonium carbamate
A number of compounds crystallise in the NH3-H2O-CO2 ternary system, including ammonium carbonates and carbamates, these being closely related to the water-deficient compound...
