-
Onset of classical dynamics in ammonium hexachlorometallates.
The piloting experiment (RB 820239) on VESUVIO on (NH4)2PdCl6, has shown that, at 5 and 80K, H momentum distribution, J(y), in NH4+ is non-Gaussian with non-vanishing... -
Neutron Diffraction Studies on CaCrFe3As3 compound
We propose to obtain 3 days of beam time on SXD equipped with its new top-loading CCR to analyze CaCrFe3As3 single crystals at different temperatures 10 K, 100 K and 300 K (the... -
Magnetic excitation spectrum in a new magnetically-ordered Fe-based supercond...
The aim of our experiment is to map out the excitation spectrum of the recently-discovered superconducting AxFe2Se2 system for energy transfers of up to 250 meV. This... -
Low energy spin wave of BiFeO3 single crystal
Of all multiferroic materials, BiFeO3 stands out particularly with its both magnetic and ferroelectric transition temperatures above room temperatures, more interestingly having... -
Quantification of hydrocarbonaceous overlayers relevant to the induction of i...
Recent experiences applying INS to examine a series of nickel-based methane reforming catalysts have enabled a generic experimental methodology to be developed. In collaboration... -
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... -
Spin excitations in LiFeAs, a stoichiometric ferropnictide superconductor at ...
We propose to measure the powder-averaged spin excitation spectrum of LiFeAs, a new member of the ferropnictide family of superconductors. This compound is special because it is... -
Rattling modes in new thermoelectrics
NaxCoO2 has an exceptional combination of thermoelectric properties, including low thermal conductivity, and it is currently under consideration for use in power recovery and as... -
The application of INS to examine high specification Fe Fischer-Tropsch catal...
Over the last 4-5 years the research team have been developing INS methodology that can be applied to investigate Fe Fischer-Tropsch (F-T) catalysts. The first stage of that... -
Spin excitations in overdoped BaFe1.82Ni0.18As2
The relationship between spin fluctuations and superconductivity is an important issue in condensed matter physics. Part of evidence suggesting direct correlation between spin... -
Search for magnetic correlations in Fe phosphide superconductors
We propose to use inelastic neutron scattering to search for the existence of spin fluctuations in two iron phosphide superconductors, LaFePO and Sr2ScFePO3. The objective is to... -
Magnetic excitation in triangular latticce antiferromagnet alpha-CaCr2O4
The triangular Heisenberg antiferromagnet is the classic example of the frustrated magnet, here the ground state forms a non-collinear 120° structure. A number of different... -
Correlation of structure and magnetic ordering with composition in layered co...
We propose to use OSIRIS to determine the magnetic structures of a series of cobalt oxysulfides containing Co in square planar coordination. Several compositions... -
Neutron and muSR study of CePtSi: Non-Fermi liquid behaviour due to avoided m...
Previous studies have pointed to a heavy-electron state in CePtSi with a strongly enhanced electronic specific heat. We have explored the heat capacity, susceptibility and... -
High-energy spin excitations in the optimally doped Ba0.67K0.33Fe2As2
From our previous data on BaFe2As2 and BaFe1.9Ni0.1As2, one may assume that the superconductivity only affects the low energy excitations. But for Ba0.67K0.33Fe2As2, the doping... -
Dynamical Transitions in the Ogg Glasses
We request 4 days on IRIS to study the temperature dependance of the structural dynamics in amorphous sodium-ammonia (Na-NH3). This will be the first investigation of the... -
diffuse scattering in PMN-PT crystals
Complex mixed-ion pervoskites, ferroelectric material (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3, attract plenty of applications due to high piezoelectric response. The difficulties result... -
Test of FERNS CCR at low temperatures on MERLIN
This dataset has no description
-
YbFe2Ge2 t/ccr cooling 150 mev 5s jaws 40x40mm
This dataset has no description
-
Low Energy Dispersion of a Stripe-Ordered, Hole-Doped Antiferromagnet
Our previous studies of the hole-doped antiferromagnet La1.75Sr0.25CoO4 have shown the distinctive "Hour-Glass" dispersion attributed to magnetic and charge ordered stripes....