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Negative thermal expansion in the rutile phase of ZnF2
It has recently been discovered than the rutile phase of zinc fluoride shows negative thermal expansion along all three crystallographic axes. What is highly unusual about this... -
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... -
Magnetic excitations and quasi-1D to 3D crossover in the metal-organic framew...
The metal-organic framework (MOF) guanadinium copper formate is of interest in the quest towards rational design of multiferroic MOFs. It exhibits cooperative Jahn-Teller... -
Is dynamic asymmetry the essential ingredient in the (universal?) 'strong-fra...
We want to elucidate whether the so-called ¿strong-fragile¿ transition reported for water mixtures is a universal phenomenon driven by confinement effects originated by the... -
Dynamical studies of incommensurate spin-density wave order in SrMn1-xWXO3 (X...
Our recent neutron scattering studies on SrMn1-xWXO3 exhibit rich structural and magnetic phases ranging from incommensurate charge (ICDW) and spin (ISDW) density wave... -
An Investigation of the electric field dependence of the dynamics of the Hydr...
The purpose of this investigation is to investigate the electric field dependence of the dynamics of the melting transition of bulk and confined water with an applied electric... -
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... -
Aza-crown-stabilized Alkali-Alkalide Systems: Solvent and metal effects on di...
We request 4 days on IRIS to investigate the diffusional and rotational dynamics of the alkalide forming, fully methylated aza-crown hexamethyl-hexacyclen (HMHC) in... -
High Pressure Neutron Diffraction Study of the Organic-Inorganic Perovskite P...
The organic-inorganic perovsike (OIP) methylammonium lead iodide, MAPbI3, has been identified as a promising candidate for the development of efficient solid-state solar cells.... -
Magnetic structure and multiferroicity in metal-formate perovskites
The family of guanadinium metal formates (M=Mn, Fe, Co, Ni, Cu) are isostructural with the perovskites and are therefore of interest for potential applications: in particular,... -
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... -
INS Study of Multifunctional Catalysts (Ru, Pd-loaded Nb2O5Hx) for the Effici...
We request 7 days on TOSCA to carry out inelastic neutron scattering study of two novel multifunctional catalysts (Ru/Nb2O5Hx and Pd/Nb2O5Hx) for the efficient cleavage of C-O... -
High resolution measurement of mode Grueneisen parameters in the negative the...
ZrW2O8 is the classic example of a material exhibiting negative thermal expansion (NTE), i.e. lattice shrinkage on warming. The origin of this behaviour has been controversial... -
Anisotropic Displacement Parameters and Diffuse Scattering in Graphite
The accurate description of van-der-Waals forces within DFT is currently one of the most active areas of research in computational physics and chemistry. In the case of soft... -
Superstructures in high-Tc La(2-x)Sr(x)CuO(4+y)
Previous powder diffraction studies of the superoxygenated La(2-x)Sr(x)CuO(4+y) (LSCO+O) system have not provided a model describing the superstructures of the intercalated... -
Low-Temperature Structural Phase Transitions in GeV4S8
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... -
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... -
Magnetic structure of heavily Fermion TbxYb1-xAgGe
YbAgGe has an enhanced electronic specific heat coefficient and two magnetic phase transitions at TM1=0.8K and TM2=0.65K. We have grown a series of TbxYb1-xAgGe and YbAgGe... -
Single crystal diffraction as a tool for the interpretation of the phonon spe...
A reliable spectroscopic assignment of the high-frequency proton modes in CsH2PO4 (CDP) is possible only within the framework of the fully ordered proton, low-temperature P21... -
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...
