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High-energy excitations in charge and orbital ordered La0.5Sr1.5MnO4
The colossal magnetoresistance effect in manganites arises from a competition between delocalisation, which favours a ferromagnetic metallic phase, and localisation of electons... -
Doping-induced energy gap in a quantum spin chain
SrCuO2 is a prototypical S = 1/2 antiferromagnetic (AF) Heisenberg 1D spin chain system. High-resolution neutron scattering studies has already successfully revealed the gapless... -
Quantum spin dynamics in molecular based triangular antiferromagnet Li2AMo3O8...
Recently new molecular based magnets Li2AMo3O8 (A = In and Sc), where Mo3O8 clusters form S = 1/2 triangular lattice Heisenberg antiferromagnet, were synthesized.... -
INS study of double perovskite at the border between two and three dimensiona...
Sr2CuWO6 is a double perovskite at the border between two and three dimensional magnetism, with a square lattice of S=1⁄2 Cu(II) ions. This proposal aims to use inelastic... -
Probing possible Dirac magnons in collinear antiferromagnets
Topological state of matter remains one of the central topics in condensed matter physics since decades ago. Take graphene as an example, the electron bands are linear and... -
Exploring magnetic frustration in a square-lattice metallic system: spin fluc...
Spin liquid is a novel phenomena that can arise due to magnetic frustration. Magnetic frustration occurs if the competing interactions cannot be mutually satisfied, giving rise... -
Suppression of thermal conductivity in nanostructured ZnO
Thermoelectricity offers solutions for the low-carbon economy through the development of energy-efficient technology. Modest improvement in thermoelectric performance would... -
The partial vibrational density of states for As2Se3 glass
The method of Se isotope substitution with inelastic neutron scattering will be used to measure the partial VDOS for As2Se3 glass. This is a prototypical network forming... -
Kondo temperature of YbInCu4 as function of pressure and substitution
Via chi¿¿(Q,E) we aim to investigate the dependence of the Kondo temperature TK of YbInCu4 on external pressure and substitution. YbInCu4 undergoes a first-order isostructural... -
Study of phonon density of states in PGEC titanate thermoelectrics
To understand the thermal conductivity suppression within PGEC titanate oxide thermoelectrics we hope to complement theoretical calculations performed on several perovskites... -
Understanding anaesthetics: Ethanol partitioning into lipid membranes, effect...
Ethanol plays an important role in the human metabolism. It is in particular known to act as a drug enhancer by increasing trans-membrane permeability, and as an anesthetic.... -
Does Na2Co2TeO6 realize the Kitaev model?
Preliminary data on the spin excitation spectrum of the honeycomb lattice compound Na2Co2TeO6 are consistent with the existence of Kitaev interactions, as was recently proposed... -
Magnons and electromagnons in a magnetic field induced collinear commensurate...
In this proposal, we would like to suggest inelastic neutron scattering measurement on a single-crystal sample of a frustrated antiferromagnet CuFeO2 under applied magnetic... -
Neutron scattering studies of hydrogen rotational transitions in Ni-MOF-74
We propose to use MARI to look at the full rotational spectrum of H2 in Ni-MOF-74 obtaining the full momentum distribution for H2 only at the Ni metal site and one with partial... -
Correlated triplon decay and Correlated multi-triplon propagation in the Shas...
We propose to continue our investigation on LET of the Shastry-Sutherland compound SrCu2(BO3)2. The first part of the experiment aims to establish the Q-dependence, which will... -
Magnetic excitations in a candidate magnetic XY analogue of graphene
This proposal is part of our research programme to explore the experimental manifestation of topological properties of magnetic excitations. The honeycomb ferromagnet is... -
Spin gap and possible spin-dimer formation in Ce(Os1-xFex)2Al10 (X=0 to 1)
Our neutron study using MARI/MERLIN on Ce(Ru1-xFex) 2Al10 reveals very interesting magnetic excitations and a manuscript is ready to submit to PRB. In x=0 (TN=27 K) a... -
Crystal Electric Field (CEF) Effect in CeIr3Ge7 and YbIr3Ge7
We recently discovered new members of the stoichiometric 1-3-7 family of crystals including YbRh3Si7, YbIr3Ge7, CeIr3Ge7, and YbIr3Si7, whose magnetic and transport properties... -
Determination of the on-top vibrational mode of the surface hydride in PdH.
Finely divided supported palladium particles are used as catalysts in many technical processes. Using MAPS we have recently investigated the interaction of hydrogen with the... -
Novel state of matter in the site-ordered double perovskites Ba2YWO6
In solids, spins and orbitals are usually not coupled to each other. This may be not true any more in the rocksalt ordered double perovskites having spin-orbit coupling....