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Local structure study of multiferroic region of cupric(II) oxide
Cupric(II) oxide (CuO) has recently found to be both antiferromagnetic and ferroelectric in temperature region from 213 K to 230 K. This high temperature multiferroic material... -
Lattice dynamics in the giant barocaloric Ammonium Sulfate
Given the challenges in providing efficient and non-harmful refrigeration, it is timely to study barocaloric systems, which offer cooling power via the application of pressure,... -
Deuteration-induced phase transition in a multiferroic framework material
The hybrid organic-inorganic perovskites are of great interest as functional materials, because they combine the well-established perovskite topology with new physics and... -
Phase transitions in Sr-doped multiferroic bismuth ferrite
Bismuth ferrite, BiFeO3, is a much-studied ceramic showing both dielectric and magnetic ordering at relatively high temperatures. In order to improve its properties there has... -
Local atomic structure of hollow and solid nanoparticles of Prussian Blue and...
This research is aimed at analyzing the structure of hollow and solid Prussian Blue (PB) nanoparticles and of bulk PB, by means of total scattering. Our main objective is to... -
Structure of amorphous Porous Aromatic Framework 1
Materials that are porous at the atomic scale have proven to be important for many applications, including gas capture and catalysis. Recently it has become possible to make... -
High pressure effects on Jahn-Teller distortion in metal-formate perovskites
The family of guanidinium metal formates has the perovskite structure and, like many perovskites, is of interest for these materials¿ magnetic and electric properties, in... -
Low-energy dynamics and emergent excitations in the cubic NTE material Cd(CN)2
Cadmium cyanide is a negative thermal expansion material: it shrinks rather than expands when heated. We are proposing to carry out an inelastic neutron scattering... -
Spontaneous strain and framework distortion in hybrid Prussian blue analogues
The metal-organic Prussian blue analogues (HIm)2K[M(CN)6], where HIm is the imidazolium cation and M = Fe or Co, have switchable dielectric constants, since the imidazolium ions... -
Magnetic inelastic scattering from dimethylammonium metal formates
The dimethylammonium metal formates (metal = Mn, Fe, Co, Ni) are metal-organic perovskite analogues of interest for potential multiferroicity. In these materials, electric... -
Local structure of a barocaloric framework material
Barocaloric materials, in which a large isothermal entropy change is associated with a pressure-induced phase transition, offer an alternative to vapour-compression techniques... -
Local structure of the semiconductor caesium lead iodide
Caesium lead iodide is of interest both as a photoluminescent material whose optical properties may be tuned by creating nanoscale structures, and as an inorganic analogue of... -
Local structure of candidate hybrid improper ferroelectrics
Ferroelectrics are materials that exhibit a switcheable polarisation, i.e. a net displacement of positively charged cations relative to anions that is reversible. In traditional... -
Structural correlations in ferroelectric triglycine sulfate
Triglycine sulfate is one of the few genuinely second-order ferroelectric phase transitions (transition temperature 334 K in deuterated form). Like many phase ferroelectric... -
Critical exponents in Cu-Guanadinium-Formate
We have recently investigated the magnetism in Cu-Guanadinium-Formate via ZF muSR at ISIS, where we focussed on the high temperautre magnetic fluctuations of the 1D magnetism... -
Order/disorder and phase transitions in the OLED material Alq3
We propose to measure the pair distribution function of the organic light emitting material Alq3 focussing on the structure of one disordered crystalline phase and its... -
Tracking how the spin cycloid in BFO evolves with electric field and temperature
AFM order in BFO was first detected by neutron diffraction and was classified as Type G. However, the spins are not perfectly antiparallel; there is a spatial-modulated spin... -
Lattice dynamics in the giant barocaloric Ammonium Sulfate
Given the challenges in providing efficient and non-harmful refrigeration, it is timely to study barocaloric systems, which offer cooling power via the application of pressure,... -
Long-range cationic ordering in metal-organic perovskite solid solutions
The structure of the metal guanadinium formates is analogous to perovskite; the Cu compound is of particular interest as a potential multiferroic. We have recently demonstrated... -
Pressure-induced phase transitions in methylammonium lead iodide
Methylammonium lead iodide has recently been recognised as an excellent photovoltaic material, with energy conversion efficient of over 20% with the prospect of gaining higher...
