162 datasets found

BiFeO3 is a room temperature multiferroic, displaying both ferroelectric and antiferromagnetic (AFE) ordering. x-BiFeO3 - (1-x)-PbTiO3 is also multiferroic at room temperature...

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....

Multiferroics and in particular BiFeO3 have recieved alot of interest. The potential of multiferroic materials to be incorporated into many devices such as sensors and memory...

NiSi is a technologically important material that is also of interest to Earth Scientists because of the possible role of Ni and Si in the Earth¿s core. It crystallises in the...

The structure dependence of BaCe0.8Y0.2O3-d (BCY-20), a leading proton conducting material, will be studied as a function of temperature and, critically, controlled atmosphere...

This proposal is to determine high quality structural models using Rietveld analysis for the pyrochlore phases CaLnTr0.5Nb1.5O7 (Ln = La, Nd, Ho, Yb and Tr = Al, Sc, Cr, Mn, Fe,...

The long period cycloid in multiferroic BiFeO3 influences the potential applications of this material and it has been shown that doping (with La and Mn) enlarges the cycloid...

Sr3Ru2O7 is a layered Ruddlesden-Popper perovskite which displays intriguing behaviour at low temperatures and high magnetic field. It can be tuned close to a quantum critical...

In this proposal we request 3 days of beam time on HRPD to study the structure and phase transitions of XNbOP2O7 (X = Rb and ND4). These materials have been shown to undergo...

YbAl3C3 undergoes a structural phase transition at 80 K and a spin-dimer formation below 10K. To gain more information on the nature of the spin-dimer state and the phase...

We request 4 days on HRPD to perform combined specific heat and neutron powder diffraction measurements of C60 and the molecular hydrogen storage materials, ammonia borane and...

The defect thiospinel, GeV4S8 adopts a cubic structure at room temperature (space group F-43m). We have identified a new monoclinic phase of this material at 2K, which may be...

In this proposal, we propose the high-resolution neutron diffraction experiments for AFeO2 (A=Cu and Ag) using HRPD. Although CuFeO2 is well known as one of magneto-electric...

We have successfully synthesised materials based on naturally occurring minerals and structurally related phases with the formula, Cu2(OH)3X where X is an anion. Phases with the...

In this work, we will examine the dopant site location, and Li distribution in cubic and In/Al doped La3Zr2Li7O12, which have been shown to display high Li ion conductivities...

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....

The frustrated quantum magnets have attracted a lot of attention with the ability of hosting the exotic quantum spin states. It has been believed that the degenerate ground...

This proposal seeks to investigate the effect of temperature on the structures of thallium and caesium azide. High-resolution neutron powder diffraction data are necessary to...

We request 4 days on HRPD with the IGAn apparatus to follow the structural changes of Me-ND4 11BD4 as a function of temperature. The high resolution of HRPD will allow us to...

By forming sheet metal using a non-proportional biaxial strain path, an improvement to the overall ductility by a factor of 2 is possible against conventional, proportional...