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Phase stability and thermal conductivity in perovskite zirconates
Perovskite zirconates have been suggested as potential next generation thermal barrier materials. SrZrO3 is particularly promising as it has an extremely low thermal... -
Lattice dynamics 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... -
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... -
Superstructures in insulating and metallic lanthanum-doped sodium cobaltate
The thermoelectric properties of NaxCoO2 can be substantially improved by replacing Na ions by cations of higher valence. Our neutron diffraction studies on SXD for doping with... -
Superstructures in lithium cobaltate
The battery material LixCoO2 has recently been shown to have high thermopower comparable to NaxCoO2 at high x. In the case of NaxCoO2 we showed using neutron Laue diffraction on... -
Phonon scattering and the thermal conductivity of 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... -
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... -
Magnetic excitations in AgCrSe2
AgCrSe2 has emerged as a material of great interest due it its good thermoelectric performance. It also has an interesting cycloidal magnetic structure. While studying the... -
Lattice dynamics 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... -
Magnetic and charge ordering, superstructures and diffuse scattering in de-in...
Sodium Cobaltate has a complex phase diagram, exhibiting various phenomena and a kaleidoscope of superlattice diffraction patterns as the concentration of sodium is varied. It... -
Lattice dynamics 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... -
Diffuse scattering from doped zinc oxide
Zinc oxide is an important wide band gap semiconductor material used in a diverse range of industrial applications, many of which require both n-type and p-type components. It... -
Understanding enhanced thermoelectric properties of sodium cobaltate doped by...
The thermoelectric power factor for (Na1-y¿My¿)0.8CoO2 is dramatically increased when M = Sr, but it is essentally unchanged from the pure compound when M = Ca. Our previous SXD... -
Magnetic and charge ordering, superstructures and diffuse scattering in de-in...
Sodium Cobaltate has a complex phase diagram, exhibiting various phenomena and a kaleidoscope of superlattice diffraction patterns as the concentration of sodium is varied. It... -
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... -
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... -
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... -
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... -
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... -
Phase stability and thermal conductivity in perovskite zirconates
Perovskite zirconates have been suggested as potential next generation thermal barrier materials. SrZrO3 is particularly promising as it has an extremely low thermal...
