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Multi-phonon scattering and anharmonicity in zinc oxide
Understanding the thermal conductivity of zinc oxide is of central importance in assessing its potential for a wide variety of applications in optoelectronics, power electronics... -
Quasi-elastic neutron studies of superstructure formation in battery materials
LixCoO2 is used extensively in portable batteries in laptops and mobile phones, but the scarcity of Li means that alternative materials are required. Structurally related... -
Diffusion pathways of sodium ions in Sodium Cobaltate via Fourier density maps
Sodium Cobaltate is in the same family of compounds as the battery material Lithium Cobaltate, and the fact that sodium is more abundant than lithium makes it an attractive... -
Intrinsic defect structures in zinc oxide
Zinc oxide is an important semiconductor material used in a wide range of industrial applications, many of which require both n-type and p-type components. It can easily be... -
Inelastic scattering from zinc oxide by neutron Laue diffraction
This dataset has no description
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Divacancy superstructures and enhanced thermopower in NaxCayCoO2
Replacing Na ions in NaxCoO2 with divalent Ca ions results in the formation of ordered arrays of divacancy clusters, rather than the trivacancy clusters found for the pure... -
Defects and monopole dynamics in spin ice
We have determined the defect structure of oxygen-depleted Y2Ti2O7 using diffuse neutron scattering, and we find that these oxygen vacancies are also the dominant defects in... -
Do defect structures in the pyrochlore Tb2Ti2O7 control hidden order or the t...
The rare earth pyrochlores have been at the forefront of research into exotic magnetic phenomena for some years. In general they are of interest because they are frustrated -... -
Structural distortions and magnetic ordering in oxygen depleted spin ice
Geometrical frustration in the spin ice material Dy2Ti2O7 leads to macroscopic degeneracy and the observation of magnetic diffuse neutron scattering down to the lowest... -
Diffusion mechanism in Li-ion battery materials
Portable Li-ion batteries are used extensively in iPods, laptops and mobile phones, and yet the mechanism of Li ion diffusion is not well understood. We have grown single... -
Do defect structures in the pyrochlore Tb2Ti2O7 control hidden order or the t...
The rare earth pyrochlores have been at the forefront of research into exotic magnetic phenomena for some years. In general they are of interest because they are frustrated -... -
Defects and spin correlations in yttrium-doped spin ice
Excitations in spin ice fractionalize into de-confined magnetic monopoles that interact with each other via the magnetic Coulomb interaction. Substituting rare earth ions with... -
Defect structure of the stuffed pyrochlore Yb2+xTi2-xO7-x/2
The magnetic ground states of geometrically frustrated pyrochlores are highly sensitive to the presence of defects. The stuffing of rare-earth ions on titanium sites has... -
Magnetic structure of beta-MnRu
We have recently succeeded in isolating single crystals of Beta-MnRu, which we know propose to study using the WISH diffractometer. Previous powder measurements of beta-MnRu... -
High temperature superstructures in thermoelectric oxides
Sodium cobalate has emerged as one of the best thermoelectric materials. Our previous neutron Laue diffraction studies on SXD have found ordered arrays of multivacancy clusters,... -
Defect structure of oxygen-deficient Yb2Zr2O6.5
Ytterbium zirconate is of fundamental interest as a model frustrated magnet, and of potential technological importance as a thermal barrier material. In both cases oxygen... -
Defect structure of the stuffed pyrochlore Yb2+xTi2-xO7-x/2
The magnetic ground states of geometrically frustrated pyrochlores are highly sensitive to the presence of defects. The stuffing of rare-earth ions on titanium sites has... -
The effect of sodium ordering on rattling modes in sodium cobaltate
NaxCoO2 has exceptional thermoelectric properties, including low thermal conductivity, and it is currently under consideration for use in power recovery applications and as a... -
Influence of superstructures on rich transport properties of lithium cobaltate
In the vicinity of x ~ 0.75, LixCoO2 has potential as a thermoelectric, since it has a high Seebeck coefficient and metallic conductivity. We have performed the first successful... -
Superstructures in iron-based superconductor Cs0.8Fe1.6Se2
Cs0.8Fe1.6Se2 becomes superconducting below 27K despite the presence of antiferromagnetism with a large moment of about 3.3 Bohr magnetons and an unusually high ordering...
