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Multiferroic (Ferroelastic/Magnetic) Phase Transitions in KMnF3
KMnF3 perovskite undergoes 3 structural, and two magnetic phase transitions on cooling from 300 K to 2 K. Above 185 K the compound is in the aristotype structure, on cooling... -
Correlation of structural parameters with electrocaloric performance in (Ba,S...
Kay objectives: measurements of Ti-O bond lengths and Ti-O-Ti angles in a series of (Ba,Sr,Ca)TiO3 perovskites and correlate with the observed variation of Tcs of the FE-PE... -
Structure and phase transitions of Sr3Ru2O7
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... -
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.... -
Study of magnetic spiral in the room temperature multiferroic BiFeO3 - PbTiO3
BiFeO3 is a room temperature multiferroic, displaying both ferroelectric and antiferromagnetic (AFE) ordering. x-BiFeO3 - (1-x)-PbTiO3 is also multiferroic at room temperature... -
Determination of H-sites in the structure of rockbridgeite, Fe5(PO4)3(OH)5
This dataset has no description
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Correlation of structures, compositions and magnetism of copper-deficient lay...
This experiment will investigate three related systems which contain copper deficient anti-fluorite-type copper sulfide layers. The overall aim is to correlate magnetic and... -
X-N Charge Density and Isotope Effects in the Low-Barrier N-H N Hydrogen Bond...
Our goal with this project is to gain insight into the bonding mechanisms of low barrier N-H N hydrogen bonds and how increased thermal energy changes the charge density... -
Multiferroic (Ferroelastic/Magnetic) Phase Transitions in KMnF3
KMnF3 perovskite undergoes 3 structural, and two magnetic phase transitions on cooling from 300 K to 2 K. Above 185 K the compound is in the aristotype structure, on cooling... -
High Resolution Powder Diffraction of Manganites to Determine Bond Lengths as...
Manganites show promise as magnetocaloric materials - for use in solid-state refrigeration - in terms of cost, durability and tunable thermal conductivity. By tuning the... -
Tilting transition and dimensionality crossover of anion chain order in Ba1-x...
Transition metal oxynitride perovskites are an emerging class of functional materials. However, their oxide/nitride ordering principles were unclear until a recent study of the... -
Non-centrosymmetrtic Dion-Jacobson and Ruddlesden-Popper Phases
Ferroelectric materials find many applications, however ferroelectric behaviour is rare as it requires a material to have a non-centrosymmetric (NCS) structure.We have been... -
Thermal expansion and phase transition in magnesium sulfate trihydrate
A recent single-crystal study determined the crystal structure of MgSO4.3D2O, and discovered that a first-order phase transition occurs when the crystal is cooled below 245 K.... -
Structure and cation ordering in A2Sn3Q7-type phases (A=In, Cr; Q= S, Se)
We wish to exploit the contrast afforded by neutrons to study the ordering of In and Sn cations in indium tin chalcogenides. Cation ordering has been inferred from spectroscopic... -
The ferroelectric phase transition in Dion-Jacobson layered perovskites
Several distinct families of layered perovskites have been shown experimentally to display ferroelectricity. The most recent of these is the Dion-Jacobson (DJ) family, typified...
