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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... -
Simultaneous Raman and INS studies of high energy excitations in C70
The vibrational spectrum of C70 has been investigated by many techniques since it became available in significcant quantities. Previous INS spectra were recorded with small... -
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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Anomalous lattice dynamics of the elemental superconductor niobium
Phonon lifetimes in BCS superconductors provide information on the details of the electron-phonon coupling mechanism. In 2008 high-resolution neutron inelastic scattering... -
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... -
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... -
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... -
Suppression of thermal conductivity in nanostructured ZnO
Thermoelectricity offers solutions for the low-carbon economy through the development of energy-efficient technology. Modest improvement in thermoelectric performance would... -
Suppression of thermal conductivity in nanostructured ZnO at elevated tempera...
Thermoelectricity offers solutions for the low-carbon economy through the development of energy efficient technology. Modest improvement in thermoelectric performance would... -
Phonons and disorder in Yb2Ti2O7
The pyrochlores provide an excellent model system for studying the interaction of framework vibrational modes, defects and magnetism. We propose to investigate these couplings... -
Anomalous magnetism in oxygen-deficient scandium-doped spin ice
Our previous diffuse neutron scattering experiment on SXD showed that oxygen vacancies are the dominant defects in spin ice. The substitution of tetravalent titanium by... -
Phonons and disorder in Yb2Ti2O7
The pyrochlores provide an excellent model system for studying the interaction of framework vibrational modes, defects and magnetism. We propose to investigate these couplings... -
Na-ion diffusion mechanisms in NaxFe1/2Mn1/2O2 cathode materials
NaxFe1/2Mn1/2O2 has been identified as a potential cathode material for Na-ion batteries since it has comparable electrochemical performance to commercially available Li-ion... -
Oxygen-deficient quantum spin ice
In quantum analogues of the spin ice materials quantum mechanical tunneling between ground states is expected, and exotic emergent behaviour has been predicted including a Higgs... -
Intrinsic defect structures in zinc oxide
Zinc oxide is an important semiconductor, but its use in a wide range of applications is limited by the difficulty in doping p-type. This is believed to be related to the nature... -
Magnon-phonon coupling in magnetoelectric HoMnO3
The manipulation of magnetic properties electronically is of great importance in modern computing. Current technology uses electric currents which draws a relatively large... -
Anomalous lattice dynamics of the elemental superconductor niobium
Phonon lifetimes in BCS superconductors provide information on the details of the electron-phonon coupling mechanism. In 2008 high-resolution neutron inelastic scattering...
