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Is magnetic frustration behind the tetragonal-to-orthorhombic transition in t...
It has been argued that the tetragonal-to-orthorhombic structural transition found in all the parent phases of the Fe-pnictide superconductors is driven by frustration, and... -
Copy of: Solvation dynamics of the phosopholipid 1,2-dipropanoyl-sn-glycero-3...
It is well known that water is the medium in which the overwhelming majority of biological processes take place. In cell membranes water molecules are thought to be essential to... -
Study of the dynamics of a multi-component polymer blend using neutron polari...
Dynamics of multicomponent mixtures such as polymer blends are typically studied with QENS and deuterium labelling. Difficulties arise in the data analysis if the coherent... -
Polymorphism and Li coordination in LiFeO2 ionic conductors
Despite the importance of the LiFeO2 phases as cathode materials in lithium ion batteries, little is known about their crystal structures. In the frame of our research project... -
Li-Ammonia Solutions/Solid - The State of the Proton as Probed By Deep Inelas...
Upon the addition of Li to anhydrous ammonia, the famous Li-Ammonia solutions form through an intriguing metal-insulator transition. These have been studied intensely for many... -
Hydrogen diffusion in Palladium-Silver membranes measured by QENS
Hydrogen selective membranes based on palladium are important for technological processes such as isotopic separation and gas purification.In general, a Pd membrane when... -
Subtle magnetic phase transitions in multiferroic BiFeO3
This experiment seeks to probe the magnetic structure of multiferroic BiFeO3 and its evolution on lowering temperature, with the specific aim of identifying magneto-structural... -
Search for magnetic fluctuations and a spin resonance in FeSe intercalated wi...
Very recently, bulk superconductivity has been found at Tc = 43 K in the layered compound FeSe intercalated with Li ions and amide and ammonia molecular groups. We propose to... -
Copy of: Magnetic excitations in the one dimensional (1D) spin-chain systems:...
The spin-chain systems with general formula A¿3ABO6, crystallizing in the K4CdCl6 type structure has attracted a lot attention in recent years due to geometrical frustration... -
Quasi-elastic neutron scattering study of reconstituted plant wax films and t...
A number of studies have determined that non-ionic surfactants are capable of altering diffusion rates and transportation of both water and active ingredients thorough the waxy... -
Magnetic excitations in the S=1/2 ferromagnetic semiconductor Lu2V2O7
Lu2V2O7 is a rare example of an S=1/2 pyrochlore. The fact that it is a ferromagnet with Tc=70 K belies the fact that it has some truly remarkable properties. These include the... -
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.... -
YbFe2Ge2 t/ccr cooling 150 mev 5s jaws 40x40mm
This dataset has no description
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Test of FERNS CCR at low temperatures on MERLIN
This dataset has no description
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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... -
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... -
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... -
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... -
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... -
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...
