-
The role of Bi in magnetic and structural dimerization of Ba3BiRu2O9.
The aim of the present proposal is to use total scattering to investigate changes in the local structure of Ba3BiRu2O9. This compound undergoes an unusual magnetovolume... -
MuSR study of a spin gap opening associated with an extraordinary magnetovolu...
We have discovered an unusual magnetovolume effect in the 6H-perovskite oxides Ba3BiIr2O9 and Ba3BiRu2O9. These compounds contain isolated face-sharing bi-octahedral dimers... -
Impact of Jahn-Teller Distortions in Sr0.5Pr0.5MnO3
We propose to use the HRPD to establish the sequence of structures, and the nature of the transitions between these, in two complex manganites Sr0.5Pr0.5MnO3 and... -
Oxygen mobility in the defect perovskite Sr3SbO5.5
We propose to use Polaris to record powder neutron diffraction data for the oxygen deficient double perovskite Sr3SbO5.5 as a function of temperature to establish the... -
Spin gap opening associated with an extraordinary magnetovolume effect in som...
We have discovered an unusual magnetovolume effect in the 6H-perovskite oxides Ba3BiIr2O9 and Ba3BiRu2O9. These compounds contain isolated face-sharing bi-octahedral dimers... -
Phase Transitions and Orbital Ordering in SrRu1-xCuxO3.
This proposal seeks to establish the importance of orbital ordering on the stability of the tetragonal phase in Cu doped SrRiuO3. Orbital ordering is believed to be a... -
Structure and stoichiometry of boron carbides synthesised by microwave heating
A key focus in industrial processing is finding greener routes to well-established, high performance materials. Boron carbide is such a material, with excellent mechanical and... -
Anion disorder in Ti pyrochlores as a precursor in the transition to fluorite
The aim of this work is to understand the nature of anion disordering in pyrochlore oxides and to establish what, if any, correlations exist between the anion position, disorder... -
The role of Disorder in Phase Transitions in some manganese Perovskites
The aim of this work is to understand the origin of the difference in the behaviour between the two doped manganites Sr0.65Pr0.35MnO3 and Sr0.70Ce0.30MnO3. The hypothesis we... -
Investigation of the low temperature phases of SrSnO3
The present proposal is to examine the low temperature structural properties of SrSnO3 using the HRPD. This work aims to examine the structural basis for the unusual low... -
The nature of the Ferroelectric Phase in CdTiO3
The aim of the present proposal is to establish the structure of the ferroelectric phase of CdTiO3 and to determine the nature of the ferroelectric-paraelectric phase... -
Ultra-rapid microwave materials synthesis: in-situ and ex-situ studies of ter...
The proposal consists of two parts. Firstly, we will undertake an ambient temperature ex-situ PND study of some new ternary transition metal carbide phases that have been... -
High temperature phases of SrNdNiRuO6 - Is this unique?
This proposal seeks to determine the structures of the high temperature phases of SrNdNiRuO6 and to investigate the nature of the transitions between them. Iturbe-Zabalo et al.... -
In-Situ Study of thermal Stability of MAX Phases in Vacuum at Elevated Temper...
Ti2AlN and Ti4AlN3 are MAX phases that exhibit a unique combination of the characteristics of both ceramics and metals coupled with an unusual combination of mechanical,... -
Effects of external and chemical pressure on the magnetovolume effects in Ba3...
Ba3BiIr2O9 and Ba3BiRu2O9 undergo very unusual structural transitions at 74 and 176 K respectively, with instantaneous negative thermal expansion of up to 1% in the Ir compound....
