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Proton dynamics in novel organic ferroelectric materials
The vast majority of known ferroelectrics are inorganic compounds such as barium titanate and potassium dihydrogen phosphate. Contrary to naïve expectation, ferroelectricity in... -
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... -
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... -
Investigating competitive diffusion of methanol, dimethyl ether and water in ...
The competitive diffusion of components of the zeolite catalysed methanol to dimethyl ether (DME) process will be investigated using quasi-elastic neutron scattering. The... -
Structural phase diagram of rare earth substituted multiferroic BiFeO3 - revi...
BiFeO3 is the most widely studied multiferroic and rare earth doping overcomes problems associated with phase metastability and leakage which have hampered applications. We... -
A Diffraction Study of the Multiferroic Double Perovskite Bi2FeCrO6
This dataset has no description
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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... -
Variable Temperature Study of thallium and caesium azides
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... -
A Self-consistent Description of the Thermoelastic Properties of Dielectric P...
20 years ago, Anderson proposed that the thermoelastic properties of the dominant (mantle) phase within the Earth, MgSiO3 perovskite, could be described as a simple Debye solid.... -
Strain analysis of commensurate charge order/zener polaron ordering transitio...
High resolution powder diffraction data will be used to obtain lattice parameter and atomic coordinate variations as a function of temperature for Pr0.6Ca0.4MnO3, which has a... -
From giant magneto-elastic coupling to negative thermal expansion
We recently used high-resolution neutron diffraction on HRPD to observe the largest magneto-elastic coupling ever seen in a metallic magnet. The material studied was CoMnSi, a... -
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... -
Role of the microstructure on proton dynamics in BaZrO3 based proton conductors
Proton-conducting, acceptor-doped, BaZrO3 based perovskite oxides are one of the most promising family of compounds for applications as, eg electrolyte materials, in the... -
Detailed characterisation of metastable phase fractions in ZrW2O8
Cubic alpha-ZrW2O8 is the classic example of a material exhibiting the unusual property of negative thermal expansion (NTE). Despite this effect having been discovered 20 years... -
Structural phase diagram of rare earth substituted multiferroic BiFeO3
BiFeO3 is one of the most widely studied multiferroics (ferroelectric TC ~ 830°C, and antiferromagnetic TN ~ 370°C). Rare earth doping has been shown to be a suitable method of... -
Hydride-ion mobility analysis of SrVO2H using quasielastic neutron scattering
The proposed experiment at ISIS aims at the characterization of the diffusional motion of the hydride-ions in SrVO2H, which possesses the highest H (hydride) content among... -
Unexplored Negative Thermal Expansion of Complex Metal Oxides that Exhibit Co...
Negative thermal expansion (NTE), the phenomenon of a material contracting upon heating, is a relatively unique occurrence with practical applications and fundamental structure... -
Electronically-driven structural transition in Ti-doped Ca3Ru2O7
The purpose of the experiment is to determine the effect of titanium doping on the structural and magnetic transitions of Ca3Ru2O7. The pure material undergoes a Néel transition... -
Origin of ultra-low thermal conductivity in Zintl-type TlInTe2: An Inelastic ...
Materials displaying ultralow lattice thermal conductivity (k_Lat) are crucial to realizing high performing thermoelectric materials to convert waste heat into electrical... -
Local structure of ortho-terphenyl glass
Ortho-terphenyl is a paradigmatic example of a molecular glass-former; yet the structure of its glass has never been fully described. We have recently demonstrated that, by...
